grub screws 中文意思是什麼
grub screws
解釋
分盡固定螺旋-
Specifications for grub screws for aeronautical purposes
航空用平頭螺釘規范 -
Specification for slotted grub screws
開槽平頭螺釘規范 -
Grub screws with thrust point
帶推力點的平頭螺釘
分享友人