Tianjin Bohaihongda Metal Products Co., Ltd is one of China's professional trading companies, specialized in selling galvanized steel coils/ sheets, CR/HR steel coils / sheets, seamless steel pipes, special thick-walled pipes and alloy pipes, including 20 # 35 # 45 # 16Mn 27SiMn, 15CrMo, 12Cr1MoV, 35CrMo, Cr5Mo, 10CrMo910, and T91 series according to API and international standards - GB8162-2008 (structural pipes), GB8163-2008 (fluid pipes), GB3087-2008 (low and medium pressure boiler tubes), ...