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低合金耐熱鋼蠕變孔洞檢驗技術工藝導則

The Technical Guidelines for the Creep Cavity Inspection of Low Alloy Heat Resistant Steels
標準號:DL/T 551-1994
The Technical Guidelines for the Creep Cavity Inspection of Low Alloy Heat Resistant Steels
標準號:DL/T 551-1994