Profile: Union Steel Industry Co., Ltd specializes in designing, manufacturing, stocking and exporting steel pipe & pipe fittings. Our steel pipe products have been widely applied in engineering projects such as oil and gas extraction, water transportation, urban pipeline network construction, offshore & onshore pipeline construction, mining industry, chemical industry and power generation industry pipeline construction. Galvanized pipes are steel pipes that have been dipped in a protective zinc coating to prevent corrosion and rust. Galvanized steel pipe can be divided into hot dip galvanizing pipe and pre galvanizing pipe. The hot-dip galvanizing layer is thick, with uniform plating, strong adhesion and long service life.