Product description: We manufacture and supply torsion spring with high-quality.Our torsion spring is made of high-quality carbon steel .Specifications:1)with the wire diameter is 1.41mm 2)Free Length 5.2cm 3) surface treatment:Zinc plating-coloring4)high tensile strength 5)Dimensional Accuracy.Our torsion springs are available in various dimensions. The Torsion Spring manufactured by us is also capable of providing unparalleled quality service. Moreover,we can supply the torsion springs as your request. Basic Information: Model NO: High Precious Torsion Spring Material: Stainless Steel