Ngwaahịa
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SANS 657-3, EN 10305, DIN 2391 Paịpụ/Tubụ ígwè dị elu
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Tubes square na rectangular
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Ọkpọkọ ígwè ERW nke a na-eji ike eletrik arụ ọrụ nke ọma
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ASTM A335 P91 Ụdị 2 tubes / P5 / P9 / P11 / P12 / P22
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ASME B16.9 A234 WPB Carbon Steel Pipe Elekere aka
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ASME B16.9 A234 WPB Butt Weld Carbon Steel Tee
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Flanges nke ọkpọkọ ígwè anaghị agba nchara ASME B16.5 SS304
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S22053 Enweghị nsogbu nke ígwè anaghị agba nchara
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Duplex igwe anaghị agba nchara ígwè pipe ASTM A815 S31803