... Hot tags: Semi Ball Valve, China, mill, manufacturer, supplier, factory, wholesale, cheapEccentric Half Ball ValveEccentric Half Ball Valve is a relative ... tight cut. Widely used on petroleum, chemical, water supply and drainage and other cities demanding cutting ... F316L or as customer’s requirementPressure rating: class150-class300Temperature:-29℃-540℃Seat: nitriding alloy steel, nitriding steel, ...