... DIN 4.Can do special design 5.MOQ 1pcs ProductCast iron ball valveSize15~200mmMaterialCast ironStandardISO,ANSI,ASTM,API,DINApplicationWater,air, ... regulation and control.The main features of valve is compact structure,reliable sealing,simple,easy maintenance,sealing surface and spherical ... of the ball basically has no flow resistance.2. Simple structure,small and light.3. Tight and reliable.It has ...