vacuum tempering furnace 真空回火炉
vacuum tempering apparatus 真空加湿器
tempering vacuum furnace 真空回火炉
vacuum m tempering furnace 真空回火炉
vacuum nitriding and tempering furnace 真空渗氮回火多功能炉
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Because the hardness of substrate was low after vacuum melting, the hardness of substrate was increased by hardening and tempering methods.
由于真空烧结涂层基体的硬度较低，采用对基体调质处理的方法来提高涂层基体的硬度。
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