- 2020
9-18
- 2020
9-18
- 2020
9-18
- 2020
9-18
鉆探用無縫鋼管產品技術參數
產品規格:O.D30-139.7mm,WT3-19mm執行標準:GB/T9808鉆探用無縫鋼管GB/T16950,地質巖心鉆探鉆具DIN2391,無縫精密鋼管EN10305-1,精…
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9-18
地質鉆探用管45MnMoB, 30CrMo, 42CrMo, 40Mn2 ; 34CrMo4, 42CrMo4
地質鉆探用管鋼種:45MnMoB,30CrMnSiA,30CrMo,42CrMo,40Mn2;34CrMo4,42CrMo4;4130,4135,4140,1541等交貨狀態:冷加工后消除應力退…
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9-17