Seamless Steel Pipe, Flange, Valve manufacturer / supplier in China, offering ANSI JIS DIN ISO GB Slip Weld Neck Flange Fittings Blind Flange Stainless Steel Flange Plate, Factory Price Customized Forged High Pressure Blind Butt Stainless Steel 304/316L Blind Flange Plate/Flange Cover, ANSI Amse B16.5 304 316 304L 316L Class 150 Class 300 Class 400 1/2" 3/4" 1" Stainless Steel Flange Bl Blind Flange and so on.