... Certificate: ISO 9001, SGS, BV, etc. ERW Carbon Steel Elbow Of HeBei HONRY TypeCarbon steel Elbow Pipe Size1/2"—72" Wall ... industry,electric industry,shipbuilding,fertilizer equipment and pipeline,structure,petrochemical,pharmaceutical industrySurface Black painting,varnish paint, anti rust oil, hot galvanized ... Pipe Co.,LtdContact:Sales@ honrypipe.com ERW Carbon Steel Elbow Of HeBei HONRY