... machining 1), Sizes: from DN10 to DN3000;2), Material: carbon steel, stainless steel and alloy steel;3), Standard: ANSI, DIN, EN1092-1, NFE, AS, ... JIS and customers' drawings for special use;4), Types: WN, SO ... , transmission etc. Free to contact me with drawing and detailed technical requirements. Thank you carbon and alloy and stainless flange