主营产品:Petroleum, chemical, metallurgy, food, pharmaceutical, electric power, construction, heating, water supply and drainage, water treatment and other industries
主营产品:Manufacturing and processing of bearings and accessories, forging release agents, optical products, ceramic products, stainless steel products, and plastic products
主营产品:Fan, refrigeration equipment, fire damper, smoke exhaust valve, air outlet manufacturing, processing, installation and maintenance services, import and export business
主营产品:National standard, American standard gate valves, globe valves, check valves, ball valves, high temperature and high pressure power station valves
主营产品:Electric ball valve, electric butterfly valve, electric actuator, DQF electric ball valve, DQF electric butterfly valve production and supply enterprises
主营产品:Fully welded ball valves, high temperature and high pressure power station valves, gate valves, globe valves, check valves, forged steel valves, butterfly valves.