Seamess steel raj rau roj av tawg
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Seamless Steel Tubes Rau Petroleum Cracking, GB9948-2006, Sanon Yeeb Nkab
Seamless steel raj rau roj av tawg, sered raws li rau fumace raj, tshav kub exchangers thiab
pipelines nyob rau hauv roj av thiab refinery nroj tsuag.High zoo carbon structural steel qib yog 20g,
20mng thiab 25mng; Alloy structural steel qib: 15mog, 20mog, 12crmog, 15CrMoG, 12Cr2MoG, 12CrMoVG, thiab lwm yam
