1: Pipe Kohua (ASTM A335 P5,P9,P11,P22,P91, P92 Etc.) Whakatakotoranga Paerewa mo te Paipa Whakakotahi Ferritic Alloy-Steel Seamless mo te Ratonga Waahi-Teitei 2: Raina Paipa (API 5L Gr.B X42 X52 X70 Etc) Raina Paipa Moore e whakamahia ana mo te kawe i te kounga teitei te hinu, te koromamao me te wat...
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