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高速鋼鋸片的校直,我們是配合采用回火过程校直法和反击校直法(参看本刊第9期34頁),效果一般还很好。最近我們改进一下
Alignment of high-speed hacksaw blades, we are using with the tempering process straightening and counterattack straightening method (see No. 9 9), the effect is generally still very good. Recently we improve