Parameters measure by hand.
参数通过手工测量。
Brand is not right, because i only use the design paper as a base and modifiy the parameters upon it.
品牌是不对的,我只是将这个图纸作为基底并在此图纸上修改参数而已。
After actual use, this brand can manufacture these screws which is not completely the same as the original onc, but also suit to use.
经过实际使用,这个牌子能够生产这两种螺丝,但是和原装的有差别,不过相比于使用原装但是滑牙的螺丝而言,这个牌子生产的这两款螺丝也是可以使用的。