processing and exporting SEAMLESS st44 seamless steel pipe api 5l oil pipe casing and tubing - Seamelss Steel Pipe
BORUN ® is a company which has been dedicated to manufacturing, distributing, processing and exporting SEAMLESS, ERW/HFW, LSAW/JCOE ,OCTG Pipes, Seamless Pipes, Hollow Sections, Welded Line Pipes, Galvanized Pipes in China for more than 20 years, our products originate from our domestic famous state-owned and joint venture mills like BAOSTEEL, TPCO, VALIN STEEL, BAOTOU STEEL, XINYEGANG STEEL st44 seamless steel pipe api 5l oil pipe casing and tubing
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