tempered forged steel 中文意思是什麼
tempered forged steel
解釋
回火鍛鋼-
Standard specification for high - strength quenched and tempered low - alloy steel forged fittings and parts for pressure vessels
壓力容器用經回火和淬火的高強度低合金鋼鍛制配件和零件標準規范 -
Tempered forged steel
回火鍛鋼
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