Ngwaahịa
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BS 1387 Igwe ọkụ na-ekpo ọkụ Galvanized Steel Pipe
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ASTM A795 Hot-Dip Galvanized ERW Grooved Steel Pipe
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ASTM A53 GR.B Hot-Dip Galvanized Welded Steel Pipe
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ASTM A192 ASTM A179 ASTM A209 ASTM A210 Fin Tube maka onye na-agbanwe ọkụ.
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Ọkpụkpọ Steel Slotted maka ngafe mmiri mmiri achịkwara
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Oil Well Casing Steel Pipe API 5CT L80 BTC R3
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API 5CT N80 R3 Casing Steel Pipe maka Ọma Mmanụ
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ASTM A106 GR.B igwe anaghị agba nchara maka mmiri
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API 5L Igwe anaghị agba nchara maka gas mmanụ