thorgrinder 發表于 2011-10-25 21:44 , c. e+ D) ?! P5 @# T用氣動攻絲機就行了http://www.thorgrinder.com/cnproductsbigclass/?12-1-Air-tapping-machine.html
xia613 發表于 2011-10-27 09:11 " T- w* `+ }' H7 ^看了氣動攻絲機,這個垂直度怎么保證?手工保證“”?