| 2. | For example : inflates the screw , key , double head the spiral , inside and outside hexagon bolt , the horse - drawn vehicle screw , the hexagonal nut , locks the nut , flange surface nut , thin nut and so on
如：膨胀螺丝、平键、双头螺、内外六角螺栓、马车螺丝、档圈,销,键,非标准件,六角螺栓, ,等六角螺母、锁紧螺母、法兰面螺母、薄型螺母等等。 |
