Eccentric Semi-Ball Valve, Slurry Valve, Special Valve manufacturer / supplier in China, offering Quanshun Valve DN350 Lift Check Valve with Model No.: H41h-16c, Durable China Origin 10" Slurry Valve DN100 for Heavy Duty, China Origin High-Quality DN350 Lift Check Valve by Quanshun Valve and so on.