Ngwaahịa
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DIN 2445 - Mpempe akwụkwọ data nka na ụzụ na-enweghị nchara nchara
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EN 10305 igwe anaghị agba nchara | Nkenkenke, Ogo na Nnyefe zuru ụwa ọnụ
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DIN 2391 Mpempe akwụkwọ data teknụzụ na-enweghị ntụpọ
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ASTM A335 P91 Ụdị 2 tubes / P5 / P9 / P11 / P12 / P22
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A213 T22 Alloy Steel tubes / ọkpọkọ enweghị nkebi
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Ọla kọpa, tube ọla kọpa na-enweghị oxygen (OFC), C10100 (OFHC) Ọla kọpa na-enweghị ikuku oxygen.
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Nkedo igwe na ngwaahịa igwe akpara akpa
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ASME B16.9 A234 WPB Carbon Steel Pipe Elbow
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ASME B16.9 A234 WPB Butt Weld Carbon Steel Tee