International Standards: API 600, API 602, API 603, API 594, API 620, API 626, API 627, API 526, ASME 16.34, ASME 16.10, ISO 5208, ISO 5752, ISO 17292,ISO 15607, BS, EN, MSS
Sizes: inch ï 20 inch
Material: Carbon Steel, Stainless Steel, Duplex, Super Duplex, Alloy Steel, Copper, Brass and Bronze Inconel, Monel, Hastelloy, etc.
Standards- API, ASME, ISO, BS, EN, ASME B16 and MSS.