Seamiess steel tubes alang sa petrolyo cracking
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Seamless Steel Tubes Para sa Petroleum Cracking, GB9948-2006, Sanon Pipe
Seamless steel tubes alang sa petrolyo cracking, sered sama sa fumace tubes, heat exchange tubes ug
pipelines sa petrolyo ug refinery plants.High kalidad nga carbon structural steel grado mao ang 20g,
20mng ug 25mng; Alloy structural steel grado: 15mog, 20mog, 12crmog,15CrMoG,12Cr2MoG,12CrMoVG,etc
