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ping zi zuan kong
Author(s): 
Pages: 34
Year: Issue:  1
Journal: Teaching Instruments and Experiments

Keyword:  瓶子车刀头砂轮废车钢钻铜焊钻透平面玻璃三棱形金刚砂;
Abstract: <正> 在玻璃瓶子或平面玻璃上钻孔,可以不用金刚砂磨.用自制的车刀头钻头就可以.将车床上用过的废车刀头,用铜焊接在废旧的钢钻杆上,再用砂轮将焊接的车刀头磨成三棱形尖或四棱形尖.钻头钝了可以再用砂轮磨好.
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