1: Boiler Pipe (ASTM A335 P5, P9, P11, P22, P91, P92 Etc.) Txheem Specification rau Seamless Ferritic Alloy-Steel Yeeb Nkab rau Kev Kub Kub Kub 2: Kab Yeeb (API 5L Gr.B X42 X52 X60 X65 Etc) Seamless Pipeline Siv Rau Kev Thauj Khoom Zoo Cov Roj, Chav Dej Thiab Wat...
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