Set up in 2000, Zhejiang Shuanghuan Plastic Valve Enterprise., Ltd. Is a China manual pressure valve manufacturer and manual pressure relief valve 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 prodcuts have got SGS Certificate, NSF certificate in USA and Australian certificate. |
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