Roller Shutter Garage Door Tension Spring Right / Left Direction Long Life

• 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.