Ball Valve, Needle Valve, Check Valve manufacturer / supplier in China, offering Carbon Steel ASTM A105 3000 Lbs T Bar High Pressure Female Thread Gas Needle Valve, Female Thread 1/8 1/4 3/8 1/2 3/4 Inch Stainless Steel Flow Control Shut off Adjustable Needle Valve, Manual Stainless Steel Female Threaded End Needle Valve and so on.