Hangzhou bluesteel machine co., ltd
Hangzhou bluesteel machine Co., Ltd . forming the machine,creating the future
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• Torsion spring material: Carbon steel & Stainless steel&sSpring steel
• Torsion spring wire dia:0.1-8mm
• Torsion spring size: all size/AS you required
• Torsion spring surface Finish: zinc plated (trivalent chromium or sexivalent chromium), nickel plated,oxidation plated, plain finish , Black Oxide and so on
• Torsion spring plating: BlackOxided, Zinc,Chrome, Galvanized, Nickel,Dacromet, Delta-Tone, Geomet,Ruspert
• Torsion spring packing: as you required
• Torsion spring sample lead time: within 7—10 days
• We also could produce according to buyer's drawing or samples/Non standardcompression springs.
| Model | Roller Door Spring |
| Material | High-Carbon Steel |
| Dimesions(mm) | Ply 6.0 / 7.0 / 8.0mm OD=65mm/90mm |
| MOQ | 500 pc |
| Product Name | Manufacturer custom garage door pull roller shutter torsion spring lowes for industrial |
| Sample | Free to send you If have stock |
| Packing | Inner---PE Bag; Outer -- Carton Box. |
| Material | Spring steel,65Mn,60Si2Mn ,stainless steel 201,301,304,316,603 Brass,bronze, SECC,SPCC,aluminum,aluminum alloy, stainless steel, nitinol,titaniumtim etc. |
| Surface treatment | Galvanize,Zinc,Nickel,Chrome plating, electrophoresis,painting,CNC milling, laser engraving& laser welding, sand-blasting, polishing, hairline brushing, spraying, anodizing, diamond cutting & high bright, printing, electro-deposition etc. |
| Usage | Automatic machine, Medical device, Industrial machine, Automoblie, Electric a appliance, Pulic equipment, etc |
| Quality control | Acoording to ROHS and SGS,conducted by ISO9001:2008 |
| Euipments | Laser Cutting Machine/CNC Shearing Machine/Flat Bed Spot-welder/Die Grinder/Steel Processing Machine/Double Servo Turret-type Punch Press/Banding Machine/Steel Processing Machine/etc. |
| Testing Lists | Coordinate measuring machine,, Technical projector, Salt spray tester, HTHH test, Abrasion tester etc. |
