shanghai longgao valve co., ltd.
《shanghai longgao valve co., ltd. is a new company with multiple brands. the leading products include: butterfly valve, flange butterfly valve, welding butterfly valve, stainless steel series butterfly valve, hard seal butterfly valve, plug-in valve, diaphragm valve, regulating valve, gate valve, shut-off valve, backflow preventer, check valve, welding insulation ball valve, explosion-proof valve, plunger valve, self-pressure regulating valve, safety valve, pressure relief valve, balance valve, solenoid valve, pressure reducing valve, temperature control valve, bellows, filter, exhaust valve, power station valve, and various electric, pneumatic valve, hydraulic control valve and other series products.