Set up in 2000, Zhejiang Shuanghuan Plastic Valve Enterprise., Ltd. Is a China ball valve manufacturer and ball valves supplier. We have Tensile Testing Machine, Vion Softening Temperature Apparatus, PHI Testing Machine, Speeding Thicker Apparatus, Compact Testing Machine, Low Temperature Refrigeratory, Fluids Mensurate Apparatus, Resistance to internal pressure of Testing Machinefor plastic pipes and fittings. our pvc ball valve, flanged ball valve, gas ball valve, water ball valve, union ball valve, plastic ball valve products have got SGS Certificate, NSF certificate in USA and Australian certificate. |