COSPL is one of the most outstanding gas spring manufacturers and suppliers, providing with its free sample, welcome to buy and wholesale customized bulk gas spring, lockable gas spring, automotive gas spring, compression gas spring, cabinet gas spring from our factory. Our company COSPL is an appointed foreign currency earner of Huaxin International Trade Corp. We have advanced automatic and semiautomatic production lines and test facilities. In addition to the technical support from Leiyan Pneumatic Springs Research Institute which is a top academic institute in China, the company adopts manufacturing technology of STABICUS and SUSPA in Germany. We are capable of R&D in varieties of special pneumatic springs, one of which is patented (Patent No.2004202098935 )by China State Patent Office.