Changzhou Longhua Shuangyi Metal Tools Co.,Ltd. is a specialized designer and manufacturer of micro steel cylinders and a developer of related products, It rose in the late 1990s and has now developed into with abilities of design and production. Adhering to the operating principle of "customers first, and qualities first", advancing and pursuing excellence.Our steel cylinders are mainly used on export-oriented drinking water machines,red wine machines,tyre aerating toolsmaur conditioner cleaners,life jackets,etc.We are keeping on developing new product ranges,such as carbonized water jugs,argon and laughing gas cylinders,tyre aerating tools,which are all the leading new products in domestic market.Our company is devoted to the realization of the utilization and popularization of technology and resources around the world by means of effective management, and gradually establishing a scientific, international and market-oriented technical service system.