Ball Valve, Needle Valve, Check Valve manufacturer / supplier in China, offering High Quality Stainless Steel Compression Ball Valve, Efficient Fluid Control Internal Thread Straight Ball Valve, Full Bore Heavy-Duty 1000 Wog, with Locking Device and Internal Thread Ball Valve - Suitable for Water, Gas, and Oil, Round Handle Ss 304 Mini Style Instrument Needle Valve and so on.