... Materials carbon steel , alloy steel , stainless steel Type elbow series , flange,series tee series ,reducer series .stainless steel series . radius of curvature ... vrnish m rust-proof oil . hot dipped galvanized Range of use chemical , petroleum , construction , domestic installation ,gas ... ,construction,etc Company name XI'AN LINKUN MATERIALS (STEEL PIPE SUPPLIES) CO.,LTDMain products : C.S seamless ...