Yan Zhang

Zigong Tongda Machinery Manufacturing Co., Ltd. is a professional enterprise that specializes in the production of various types of compressors for petroleum, petrochemical, coalbed methane, and other process compressors. The private company was founded in 1997 and is based in Zigong, China. With over 20 years of experience in manufacturing complete sets of equipment for natural gas filling stations and system solutions, the Chinese company is one of the few in China that can independently design, manufacture, and install CNG, LNG, and hydrogen energy complete sets of equipment. The CEO is Li Bin Yang.

Sichuan Y&J Industries Co., Ltd. engages in research and development, design, manufacturing, and sales of customized mechanical equipment and parts. Its products include ball valve adapter, gate valve bonnet, butterfly valve body, spindle, hoist winch brake part, and customized hydraulic cylinder parts. The company was founded on December 13, 2001 and is headquartered in Chengdu, China.