GB2542126A - Step nosings - Google Patents
Step nosings Download PDFInfo
- Publication number
- GB2542126A GB2542126A GB1515875.1A GB201515875A GB2542126A GB 2542126 A GB2542126 A GB 2542126A GB 201515875 A GB201515875 A GB 201515875A GB 2542126 A GB2542126 A GB 2542126A
- Authority
- GB
- United Kingdom
- Prior art keywords
- groove
- fusing
- nosing
- extrusion
- grooves
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 50
- 238000001125 extrusion Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 24
- 239000002245 particle Substances 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 239000004033 plastic Substances 0.000 claims abstract description 13
- 229920003023 plastic Polymers 0.000 claims abstract description 13
- 238000013508 migration Methods 0.000 claims abstract description 4
- 230000005012 migration Effects 0.000 claims abstract description 4
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 4
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 4
- 239000011324 bead Substances 0.000 claims abstract 2
- 239000011325 microbead Substances 0.000 claims description 9
- 230000004927 fusion Effects 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 4
- 239000010431 corundum Substances 0.000 claims description 4
- 229920001187 thermosetting polymer Polymers 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
- 239000002421 finishing Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
- B29C65/7805—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features
- B29C65/7808—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features in the form of holes or slots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
- B29C65/7805—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features
- B29C65/7814—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features in the form of inter-cooperating positioning features, e.g. tenons and mortises
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
- B29C70/64—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres the filler influencing the surface characteristics of the material, e.g. by concentrating near the surface or by incorporating in the surface by force
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/104—Treads
- E04F11/16—Surfaces thereof; Protecting means for edges or corners thereof
- E04F11/163—Protecting means for edges or corners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/84—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks by moulding material on preformed parts to be joined
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A method for making an anti-slip step nosing comprising a grooved extrusion (12, fig 1) comprising arranging the extrusion with a groove 14a horizontal and facing upwardly, fitting into the groove a pre-cut piece of thermoplastic ground marking material 15 having a thickness greater than the depth of the groove, and heating the material to fuse it to the groove. The heating may be carried out in any convenient way including: gas torch, microwave, infra-red or placing the nosing in an oven. Preferably, the method comprises fitting the extrusions with the material at a fitting station, conveying through an oven for fusing, then through a sprinkling station 18 at which anti-slip particles 17 and retro-reflective beads can be added while the material is softened such that they partially sink in. Where a step nosing has multiple grooves, angled with respect to one another, the procedure may be repeated each groove being oriented so that it is horizontal and facing upwards. A containment 19 comprising a box section, open at the top to permit sprinkling, may be provided over the groove to prevent migration of the softened plastic material.
Description
Step Nosings
This invention relates to step nosings.
Step nosings are reinforcements/anti-slip/edge-visibility finishings applied to steps. Well known step edging products comprise metal, such as aluminium and bronze, or plastic extrusions having grooves in which anti-slip material such as rubber or plastic is located. For anti-slip provision, particles of glass, flint or corundum (aluminium oxide) are incorporated into the material, and these also resist wear over long use, so that the slip resistance changes but little over time.
The anti-slip material is conventionally inserted into the grooves after the extrusion has been secured to the step by screws let into the base of the groove, whereby to conceal the screw heads from view in the interest of a neat finish.
It is proposed, now, however, to bond the anti-slip material into the grooves, and to use for such material a thermoplastic material used for ground marking and also more recently for applying whole cover step treatment for anti-slip provision for outdoor, particularly stadium steps, that is bonded to the ground/step surface by heat fusion. The heat fusion step softens the exposed surface of the plastic so that anti-slip particles can be partially sunk into the surface, remaining partially exposed whereby to impart anti-slip properties, and, if retro-reflectivity is required, retro-reflective glass microbeads may also be scattered on to the soft surface to be fused thereto with sufficient exposure to reflect incident light back towards its source.
The heated surface, on cooling, has improved hardness, heat resistance and wear resistance. It can be provided in a range of colours.
This material would have to be bonded into the groove by heat fusion in order to achieve the wear and slip resistance required. As the conventional way of heat bonding the material is by way of a gas torch, which is not appropriate for indoor use, and, often, even for outdoor use, it is not generally possible to install the step nosing extrusion to the step and then bond the anti-slip material to it, and, in any event, the extrusions commonly have two or three grooves, one on top of the step, one on the riser and a narrow one canted at about 45° between these two.
The present invention provides a method by which the material can be satisfactorily fused into the grooves.
The invention comprises a method for making an anti-slip step nosing comprising a grooved extrusion, comprising arranging the extrusion with a groove horizontal and facing upwardly, fitting into the groove a pre-cut piece of thermoplastic ground marking material having a thickness greater than the depth of the groove, and heating the material to fuse it to the groove.
The material thickness may be 0.5 to 1.0 mm greater than the depth of the groove.
The heating may be carried out in any convenient way, including by way of a gas torch, microwave, infra-red radiation or simply by placing the step nosing in an oven.
While the material is softened, anti-slip particles of glass, corundum or other materials may be sprinkled on its surface and allowed partially to sink in, and retro-reflective microbeads may also be sprinkled when the temperature is such as to allow them partially to sink in.
In a production facility, extrusions may be fitted with material at a fitting station and conveyed through an oven for fusing, then through a sprinkling station at which anti-slip particles and retro-reflective microbeads may be added. The temperature at the sprinkling station may be controlled to maintain the material surface at optimum softness to allow particles and microbeads to sink partially.
The fitted extrusion may have a containment applied over the groove to prevent migration of softened plastics material beyond the groove. The containment may comprise a box section, open at the top to permit particle sprinkling.
Where a step nosing has multiple grooves, angled with respect to one another, the procedure may be repeated for the other grooves, the groove being treated being orientated so that it is horizontal, facing upwards. Where there are three grooves, one on the step top, one on the riser, and a 45° canted groove in between, they may be treated in that order.
If the nature of the plastics material is such that the fusing step thermosets it so that it does not soften again at initial fusing temperature, repeated passes of the step nosing through a fusing oven with one or two grooves already filled will not affect the filled grooves. Otherwise, fusion can be effected by localised heating, as, for example, by microwave or infra-red heating directed at the upper surface of the unfused material. A method and apparatus for making an anti-slip step nosing in accordance with the invention will now be described with reference to the accompanying drawings, in which:
Figure 1 is a perspective view of one form of step nosing extrusion;
Figure 2 is a cross section of another form of step nosing extrusion;
Figure 3 is a cross section through a groove of a step nosing like that of Figure 2 with a plastic insert;
Figure 4 is a plan view of the step nosing of Figure 3, with the insert of Figure 3;
Figure 5 is a cross section kike that of Figure 3, under heat treatment;
Figure 6 is a cross section like that of Figure 5, under sprinkling treatment: and
Figure 7 is a view showing how the cross section of Figure 2 is re-orientated for another step in the method.
Figures 1 and 2 show grooved extrusions 12 as are ordinarily used as step nosings 11. Conventionally, they are fitted to the edges of steps as by screws 13 (Figure 1), and rubber or plastic inserts fitted into the grooves 14 to cover up the screws 13. The edges of the grooves 14 may be undercut to retain the inserts. The extrusion 12 of Figure 1 has just one such groove 14, that of Figure 2 having three grooves 14, one that sits in use on top of the step, one that sits over the step riser, and one between the other grooves canted at 45°.
The drawings illustrate a method for making an anti-slip step nosing 11 comprising a grooved extrusion 12, comprising arranging the extrusion 12 with a groove 14 horizontal and facing upwardly, fitting into the groove 14 a pre-cut piece of thermoplastic ground marking material 15, Figure 3, having a thickness greater than the depth of the groove 14, and heating the material 15 to fuse it to the groove 14.
The method can be used on the single groove 14 of the extrusion 12 of Figure 1 or on one or all three grooves 14 of the extrusion 12 of Figure 2.
The material 15 thickness can be 0.5 to 1.0 nun greater than the depth of the groove 14.
The heating can be carried out in any convenient way, including by way of a gas torch, microwave, infra-red radiation or simply by placing the step nosing 11 in an oven.
Figure 5 shows the step nosing 11 beneath an infra-red or microwave heater 16.
While the material 15 is softened during or after the fusing step, anti-slip particles 17 of glass, corundum or other materials can be sprinkled from a hopper 18 on its surface and allowed partially to sink in, and retro-reflective microbeads may also be sprinkled when the temperature is such as to allow them partially to sink in.
In a production facility, extrusions may be fitted with material at a fitting station and conveyed through an oven for fusing, then through a sprinkling station at which anti-slip particles and retro-reflective microbeads may be added. The temperature at the sprinkling station may be controlled to maintain the material surface at optimum softness to allow particles and microbeads to sink partially.
The fitted extrusion has a containment 19, Figures 5 and 6, applied over the groove 14 to prevent migration of softened plastics material 15 laterally beyond the groove 14. The containment 19 comprise a box section, open at the top to permit particle sprinkling made of aluminium or other material that will withstand the heat fusing treatment. At the end of the treatment, the containment 19 is re-used.
Where a step nosing has multiple grooves, as has that illustrated in Figures 2 and 4, angled with respect to one another, the procedure can be repeated for the other grooves, the groove being treated being orientated so that it is horizontal, facing upwards. Where there are three grooves, one on the step top, one on the riser, and a 45° canted groove in between, they may be treated in that order. Figure 7 shows how the extrusion of Figure 2 is orientated when treating the groove 14a. A differently sized containment 19 is used when treating differently sized grooves.
There may be no need to use the same material 15, or material of the same colour, for all groves, nor, perhaps, to add anti-slip particles to the material 15 in the vertically oriented groove lb
If the nature of the plastics material 15 is such that the fusing step thermosets it so that it does not soften again at initial fusing temperature, repeated passes of the step nosing 11 through a fusing oven with one or two grooves already filled will not affect the filled grooves. Otherwise, fusion can be effected by localised heating, as, for example, by microwave or infra-red heating directed at the upper surface of the unfused material.
Of course, it will no longer be possible to conceal screws 13 beneath the inserted material 15.
Claims (1)
- Claims: 1 A method for making an anti-slip step nosing comprising a grooved extrusion, comprising arranging the extrusion with a groove horizontal and facing upwardly, fitting into the groove a pre-cut piece of thermoplastic ground marking material having a thickness greater than the depth of the groove, and heating the material to fuse it to the groove. 2 A method according to claim 1, in which the material thickness 0.5 to 1.0 mm greater than the depth of the groove. 3 A method according to claim 1 or claim 2, in which the heating is carried out in any convenient way, including by way of a gas torch, microwave, infra-red radiation or simply by placing the step nosing in an oven. 4 A method according to any one of claims 1 to 4, in which, while the material is softened, anti-slip particles of glass, corundum and/or other materials such as retro-reflective beads are sprinkled on its surface and allowed partially to sink in. 5 A method according to any one of claims 1 to 4, in which extrusions are fitted with material at a fitting station and conveyed through an oven for fusing, then through a sprinkling station at which anti-slip particles and retro-reflective microbeads can be added. 6 A method according to claim 5, in which the temperature at the sprinkling station is controlled to maintain the material surface at optimum softness to allow particles and/or microbeads to sink partially. 7 A method according to any one of claims 1 to 6, in which the fitted extrusion has a containment applied over the groove to prevent migration of softened plastics material beyond the groove. 8 A method according to claim 7, in which the containment comprises a box section, open at the top to permit particle sprinkling. 9 A method according to any one of claims 1 to 8, in which, where a step nosing has multiple grooves, angled with respect to one another, the procedure is repeated for the other grooves, the groove being treated being orientated so that it is horizontal, facing upwards. 10 A method according to claim 9, in which, where there are three grooves, one on the step top, one on the riser, and a 45° canted groove in between, they are treated in that order. 11 A method according to any one of claims 1 to 10, in which, if the nature of the plastics material is such that the fusing step thermosets it so that it does not soften again at fusing temperature, the step may make repeated passes of the step nosing through a fusing oven with one or two grooves already filled. 12 A method according to any one of claims 1 to 10, in which, if the nature of the plastics material is not such that the fusing step thermosets it so that it does soften again at initial fusing temperature, fusion is effected by localised heating, as, for example, by microwave or infra-red heating directed at the upper surface of the unfused material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1515875.1A GB2542126A (en) | 2015-09-08 | 2015-09-08 | Step nosings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1515875.1A GB2542126A (en) | 2015-09-08 | 2015-09-08 | Step nosings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201515875D0 GB201515875D0 (en) | 2015-10-21 |
| GB2542126A true GB2542126A (en) | 2017-03-15 |
Family
ID=54345917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1515875.1A Withdrawn GB2542126A (en) | 2015-09-08 | 2015-09-08 | Step nosings |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2542126A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU225631U1 (en) * | 2023-09-28 | 2024-04-26 | Общество с ограниченной ответственностью "Русский профиль" | STEP COVER |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1500139A (en) * | 1966-07-25 | 1967-11-03 | Anciens Etablissements Fevre & | Non-slip tile and related items |
| FR2644727A2 (en) * | 1989-03-02 | 1990-09-28 | Nortene Sa | Method of manufacturing a road-marking grid |
| JPH09174686A (en) * | 1995-12-26 | 1997-07-08 | Nippon Palletec Kk | Fusion bonding method of anti-slip tape for synthetic resin pallet |
| US20090145059A1 (en) * | 2007-12-07 | 2009-06-11 | Kay Ronald J | Safety nosing components and manufacturing methods |
| GB2519765A (en) * | 2013-10-29 | 2015-05-06 | Thermagrip Ltd | Step coverings |
-
2015
- 2015-09-08 GB GB1515875.1A patent/GB2542126A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1500139A (en) * | 1966-07-25 | 1967-11-03 | Anciens Etablissements Fevre & | Non-slip tile and related items |
| FR2644727A2 (en) * | 1989-03-02 | 1990-09-28 | Nortene Sa | Method of manufacturing a road-marking grid |
| JPH09174686A (en) * | 1995-12-26 | 1997-07-08 | Nippon Palletec Kk | Fusion bonding method of anti-slip tape for synthetic resin pallet |
| US20090145059A1 (en) * | 2007-12-07 | 2009-06-11 | Kay Ronald J | Safety nosing components and manufacturing methods |
| GB2519765A (en) * | 2013-10-29 | 2015-05-06 | Thermagrip Ltd | Step coverings |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU225631U1 (en) * | 2023-09-28 | 2024-04-26 | Общество с ограниченной ответственностью "Русский профиль" | STEP COVER |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201515875D0 (en) | 2015-10-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |