YAAO Valve Company conducts scientific research, development, production, distribution and after sales service. We have our own forged factory, CNC machining use in all production processes, and do phosphate processing by ourselves. YAAO provides a wide range of valves including Forged Steel Gate Valves, Forged Steel Globe Valves, Forged Steel Check Valves, Forged Steel Ball Valves, which comply with the API 602, CE, TS, ISO and other international standards. Our designs are specially made to give high degree reliability, sustainability, durability, and highest standards in the entire production process.