Flanges Forged Carbon Steel Socket, Welding Flange

We are offering flanges forged carbon steel socket welding flange. process: forging size: dn15 to dn1200 1/2"-48" description: ansi b16.5 class150, class300, class600, class900 materials: carbon steel astm a105, c22.8, st37.2 stainless steel ss304, 304l, 316, 316l quality: iso9001-quality-systerm has been passed surface treatment: black painting, anti-rust varnishes, anti-rust oil applications: petroleum,chemical,power,gas,metallurgy, shipbuilding, construction, etc.