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Zhejiang Naishi Valve Co., Ltd. is a global enterprise that integrates research, design, manufacturing, marketing, installation, and technical support. The company focuses on producing a comprehensive range of industrial ball valves that comply with ASME, ANSI, EN, BS, DIN, API, GB, and GOST standards. Covering valve sizes from DN10 to DN1600, Naishi manufactures trunnion-mounted, floating, forged high-pressure, fully welded, double block and bleed (DBB), high-temperature, cryogenic, and alloy valves. With advanced production technology and a team of experienced professionals, Naishi delivers dependable valve solutions for applications in oil, gas, petrochemical, energy, and power sectors.