Zhejiang Alpha Valve Co.,Ltd found in 1995 has been specialized in industrial valves around 30 year, for manufacturing various types of ball valves, check valves, gate valves, globe valves, butterfly valves serving in oil, gas, petrochemical, LNG, power plant, marine, waste water, paper industry etc. Non-destructive examination such as RT, UT, PT, MT, cryogenic test, fugitive emission test etc can be conducted as per requirements. Everyone can reply on our products for our throughout serve to serve aiming to meet/exceed you severe requirements, for we have skilled process of quality control from foundry to final shipping.