9 6mm double helical torsion spring

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{"cid":"91180549","title":"Sofa \/ Bed Door Helical Torsion Spring Free Length Stainless Steel Tension Springs","imgUrl":"https:\/\/img.chinax.com\/nimg\/62\/f8\/f8ce72b33a873382e7bfa2bf67a0-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"NV","Model Number":"NV0013","Minimum Order Quantity":"1000pcs","Delivery Time":"15 to 20 work days","Certification":"ISO9001","Place of Origin":"CHINA","Payment Terms":"L\/C, T\/T, Western Union","Supply Ability":"100000 PCS per Month","Packaging Details":"carton packing","Material":"carbon steel or as your drawing","Colour":"Black or white","surface":"zinc plated or as your drawing","size":"as your drawing","length":"10mm to 1000mm","hardness":"HRC as your request"}}