spiral spring 1.Type:coin 2.Bearing way: ... 4.Size:depen Enterprise introduction As specilized precise spring manufacturer,we were founded in 2001 in Guangdong,China ... reel and so on. Our material of the spring,which is High elastic, strong toughness of Japanese ... selections. Name:Japan SUS301 carbon steel spiral spring1.Type:coin,spiral,cylinder2.Bearing way:Torsion,compression,extension3.Material ...