... ; 2)Standard:ANSI, DIN, BS,UNI, JIS,SABS Carbon steel forged long welding neck flange 1) material: stainless ... DIN , EN, and customers' drawings for special use; Material Carbon steel, alloy steel, stainless steelPressure RatingsClass 150, 300, 600, ... , PN16, PN25, PN40 and PN64Applications rangesuch as oil industry, chemical industry, water conservancy, electric power, boiler, machinery, metallurgy, ...