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Zhejiang Naishi Valve Co., Ltd. is a professional manufacturer of high-quality industrial ball valves in China.We specialize in cast steel floating ball valves, forged steel trunnion-mounted ball valves, cryogenic valves, metal-seated valves, fully welded valves, and more. Our products, made from carbon steel, stainless steel, and alloys, serve industries like oil & gas, petrochemical, and power generation.