试验探索了一种提高T 12 A钢制性刀韧性及使用寿命的热处理工艺。
A new technology of heat treatment has been approached for increasing the toughness and working life of the files made of T12A steel.
试验探索了一种提高T 12 A钢制性刀韧性及使用寿命的热处理工艺。
A new technology of heat treatment has been approached for increasing the toughness and working life of the files made of T12A steel.
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