SEAMLESS STEEL PIPE
China SEAMLESS STEEL PIPE catalog of Hot Rolled Sch40 Seamless Carbon Steel Pipe Grade B - ASTM A106 / A53, API 5L A106/A53 Gr. B A179/A192 X42 X52 St37 St52 Seamless Steel Pipe (Pipeline Pipe) provided by China manufacturer - Tianjin Boer King Steel Import and Export Co., Ltd., page1.