Specialized in the production of gas source valves, gas source distributors, and various valves, bridge racks, parent lines, various instrument valves, valves, instrument tubes, polytetrafluoroethylene valves, as well as various connections, self-controlled measuring tube attachments, blastproof pipe connections, blast resistant tubes, blastproof wires, electrical, mechanical, aerial, ship-based, etc., products are widely used in automated control systems such as refining oil, chemical, electrical, mechanical, medical, aviation, ship etc。