GX-12CrMoVNbN高合金马氏体不锈钢铸件气孔的产生和防止
GX-12CrMoVNbN고합금마씨체불수강주건기공적산생화방지
Formation and Prevention of Blowhole in GX-12CrMoVNbN High Alloy Martensite Stainless Steel Castings
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