... 4.Can do special design 5.MOQ 1pcs ProductCast iron ball valveSize15~200mmMaterialCast ironStandardISO,ANSI,ASTM,API,DINApplicationWater,air,non- ... 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 whole diameter of the ball basically has no flow resistance.2. Simple structure,small ...