ASTM/DIN GOOD QUALITY PVC SINGLE UNION BALL VALVE 1.Raw material: PVC,CPVC 2.Size: 1/2''-4'' 3.Colour:GREY,WHITE 4.Standard: DIN,ASTM We have over 10 years producing experience in Shanghai for pvc,ppr and pe product . We have own factory in Shanghai, China. We have exported more than 40 countries. We have passed ISO9001 certificate.