Xiamen Shuangyuan Springs Ind Co.,Ltd is one of the leading manufacturer of gas spring and spring in China.We have two factories in China.One is gas spring factory,the other is spring factory.Gas spring factory produce compression gas spring,Locking gas spring(lockable gas spring) and other special gas spring like tension gas spring,Stainless steel gas spring etc.Our gas spring are mainly used for medium-to-high grade cars like BMW,Audi,Nissan and we have 10 year OEM experiences and aslo used ofr industries of machinery,hardware,furniture and fitness equipments.Now the company has an annual outpur of 2500000pcs of gas spring.Spring factory mainly produce DIN2093 disc spring, DIN6796 heavy load spring washer, compression spring,tension spring ,torsion spring,power spring, constant force spring, spiral spring,stamping parts etc.Our company passed ISO9001:2000 certificate in 2004 and also passed ISO/TS 16949.Our products are sold well in many countries like USA,Germany,Poland,France,Canada etc.Pls contact with us if you are interested.