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Seamless nruab nrab carbon steel boiler thiab superheater raj
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Seamless txias kos qis carbon steel tshav kub exchanger thiab condenser raj
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Petroleum thiab natural gas industries-Steel yeeb nkab rau pipeline tsheb thauj mus los
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Petroleum and natural gas industries-Steel pipes for use as casing los yog tubing for Wells
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Cov yeeb nkab steel, dub thiab kub dipped zinc coated coated welded thiab seamless
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Seamless carbon thiab alloy steel machanical tubing
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Seamless carbon steel boiler raj rau kev pabcuam siab
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Seamless Carbon Steel Yeeb Nkab rau Kev Pabcuam Kub Kub
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Seamless thiab welded steel yeeb nkab rau kev pabcuam kub tsis tshua muaj