Profile: Chengdu Dongtang Investment Co., Ltd. is a supplier of flat gate valve, orifice plate pressure tapping, embedded flat gate valve, throttle & stop emptying valve, sleeve discharge valve, porcelain throttle & stop valve, pipe layer and dump truck. Pipe layers are specially used for the oil & gas pipeline projects, with the maximum lifting weight between 40 ton and 90 ton. There are valves with or without inlet guide vane, high pressure or low pressure, medium temperature, regular temperature, low temperature, sulfur-resistant and nonsulfur-resistant. The products are widely used in petroleum and petroleum products, natural gas, airport, chemical engineering, waste water, environment protection and in urban pipe network. We are accredited with API6D certification.