Ọkpụkpụ ígwè na-esighị ike maka mgbawa mmanụ ala
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tubes igwe anaghị agba nchara maka mgbawa mmanụ, GB9948-2006, Sanon Pipe
Igwe anaghị agba nchara maka mgbawa mmanụ ala, sered dị ka fumace tubes, ọkpọkọ mgbanwe okpomọkụ na
pipelines na mmanụ ala na ụlọ ọrụ na-esi mmanụ. High mma carbon structural ígwè akara ule bụ 20g,
20mng na 25mng; Alloy structural ígwè akara ule: 15mog, 20mog, 12crmog, 15CrMoG, 12Cr2MoG, 12CrMoVG, wdg
