... steel 2Machine:Lathe,CNC,Drilling machine,Milling machine, Q41F-16C Ball Valve 1MaterialDuctile cast iron,Grey cast iron2SandGreen sand,sodium silicate ... ,Spraying,Galvanization8SizeDN32-DN2000 9StandardJIS,ANSI,DIN,GB,BS 10PressurePN10,PN16 B:We has its own QC team .all products need 3 ...