... . Standard: ASME, ASTM, JIS, DIN, EN5. Painted: black, varnish, antirust oil, hot-dipped galvanized Specificationsn Of steel elbow for pipes Tianjin ... , ANSI,ASME,API5L,DIN,JIS,BS,GBSurface treatmentblack paint, varnish, rust-proof oil, and hot-dipped galvanizedRange Of ApplicationChemical industry, petroleum industry ...