stainless steel size: 1/8"-4" pressure test:API 598 material: CF8M/1.4408, CF8/1.4308 ... requirements.Our main products are ball valves,mini valve, check valves, globe valves, gate valves, strainers, sanitary ... valve & fitting, quick couplings such as type A,B, ... plug and so on. They are all up to ANSI, API, DIN, BS, JIS, GB standards an so on. 2 ...