For Manufacture heating-pipelines, containers, coal-saving devices, superheaters and reheaters of high pressure boiler Standard： GB5310, JIS G3461, JIS G3462, ASTM A179, ASTM A210, ASTM A192, ASTM A213 Main steel grade ： 20G, 20MnG, 1 5MoG, 15C rMoG, 12C r2MoG, 12C rlMoVG, A213T11, A213T12, A213T22 etc. Other grade canalso be provided after consulting with customers .