Ngwaahịa
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Asme SA-268 sa-268m enweghị uwe nchara nchara
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ASTM A500 pre-Gal-galeshia slechara
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BS 1387 na-ekpo ọkụ na-ekpo ọkụ galvanized
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ASTM A795 na-ekpo ọkụ na-ekpo ọkụ na-acha uhie uhie
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ASTM A53 GR.B Hot-Delvanized galvanized welved pịchara
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ASTM A192 ASTM A179 ASTM A209 ASTM A210 FX FUBE maka Exchanger
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Slatted ígwè maka akụkụ mmiri na-achịkwa
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Mmanụ nke ọma cipe pipe pọpụ API 5CT L80 BTC R3
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API 5CCT N80 R3 Cash Flic pipe maka mmanụ ọma