... 4.Size:depent on you Enterprise introduction As specilized precise spring manufacturer,we were founded in 2001 in Guangdong,China,we ... leash,badge reel and so on. Our material of the spring,which is High elastic, strong toughness of Japanese import ... for reliable selections. Name:Best quality carbon steel Japan SUS301 coil spring1.Type:coin,spiral,cylinder2.Bearing way:Torsion,compression,extension3 ...