生產精軋無縫管，DZ40地質管，DZ50地質管，R780地質管價格合理：

名稱                          執行標準                規格                              價格 
15CrMoG合金管 GB5310-1995 54×3.5-4.5-6-8-10-12              1556
15CrMoG合金管 GB5310-1995 57×3.5-4.5-6-8-10-12-14          1965
15CrMoG合金管 GB5310-1995 60×3.5-4.5-6-8-10-12-14        1155

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