wholesale Ansi Grooved Flange COMPANY PROFILETianjin Baolai Steel Group Co., Ltd is a comprehensive company, which focus on steel pipes and other steel products. Established in 1991, Baolai is among the first few specialized companies that develop and manufacture ordinary and special diameter steel pipes. We manufacture API, ASTM,BS, DIN and JIS standards pipes with galvanizing facility....
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