... 4.Can do special design 5.MOQ 1pcs ProductCast iron ball valveSize15~200mmMaterialCast ironStandardISO,ANSI,ASTM,API,DINApplicationWater,air, ... ,simple,easy maintenance,sealing surface and spherical often stay in closed state,anti scour,easy operation and maintenance,apply ... for water,solvents,acids and natural gas in general working medium in all sectors.Advantages:1. Small fluid resistance,the ...