Direction Dual Torsion Spring Garage Door Stainless Steel 17-7-PH
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Factory Custom High Quality Stainless Steel Double Hook Torsion Spring Specification Wire diameter 0.08mm-10mm I.D >=0.1 mm O.D >=0.5 mm Free length >=0.5 mm Total Coils >=3 Active coils >=1 Material Spring steel (SWC), Music wire(SWP), Stainless steel(SUS......
Guangdong Hershey Spring Industrial Co., Ltd
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