... XS XXS STD.SIZE:1/2 inch to 48 inchRANGE OF APPLICATION:Chemical industry, petroleum industry, construction industry, domestic installation and ... TREATMENT:Shot blasted, rust-proof black coating, black painting, 3PE.RADIUS OF CURVATURE:1D-10D ANSI,ASME,API5L,DIN,JIS,BS,GBWe ... pipe fittings and steel pipes production equipment in China, all of products are produced by ourself, so we can give you ...