... ABS,WATERMAR obtained; History:17 years (Since1994 triple offset butterfly valve wafer or flange type Size: 2"~80";Pressure rating: Class150 ... , ASME, ANSI, API, BS, DIN, JIS etc. We can offer special standard valves to our clients on your request.Certificates: We ... facilities and inspecttion equipments have been employed in Shanghai Huatong Valve Co., Ltd. Based on the first-class management and ...