... way:Torsion 2.Material:Stainless steel 3.Occation:safety car seat belts 4.Size:depend on you Enterprise introduction As ... for reliable selections. Name:Stainless steel spiral spring for Car seat belts1.Type:coin,spiral,cylinder2.Bearing way:Torsion,compression,extension3 ... you5.Use occasion:auto mbile,auto car,furniture,industrial,motorcycle and so on. Stainless steel spiral spring for Car seat belts