Hexagon socket set screws , flat point . iso thread 内六角平头止动螺钉. iso螺纹
Hexagon socket set screws with flat point 内六角平端紧定螺钉
Hexagon socket set screws with flat point 内六角平端紧定螺钉
Slotted set scews with flat point 平端开槽调整螺钉
Slotted set screws with flat point 开槽平端紧定螺钉
Hexagon socket set screws with flat point iso 4026 : 2003 ; german version en iso 4026 : 2003 内六角平端紧定螺钉
Each of a series of mechanical or wooden drawing pencils is sanded to a flat point , then held at a 45 angle and pushed forward and downward against the test sample 每一组机械或木质铅笔被打磨成平面,然后对准试样的测试表面,握隹铅笔向下、向前推铅笔。