... Spectrum testing for Raw Material 1.We offer carbon steel and stainless steel flanges.2.Sizes: ... , 1/2 inch to 48 inch3.Material: carbon steel, stainless steel4.Standard: ANSI,JIS,DIN,BS4504 ... , machining7.Surface Treat: Anti-rust Oil, Paint, Zinc, Hot dipped Galvanized8.Packing: plywood cases and pallets ... 80 tons per month10.Delivery: 30days12.Material :Carbon Steel:A105,SS400,SF440,RST37.2,S235,C22. ...