ox horn core bar 牛角芯棒
core bar drawing 芯棒拔长
core bar expanding 芯棒扩孔
core bar stretching 芯棒拔长
OX-HORN CORE BAR 牛角芯棒
core bar break up 芯棒断裂
H13 steel core bar H13钢芯棒
The invention consists of an outer tube, a rubber stopper, a core bar and a push bar.
本发明由外筒、胶塞、芯杆和推杆组成。
A ratchet wheel with a handle is sheathed on the core bar, and a screw can be easily screwed down or unscrewed by both hands.
在芯杆上套上一个带有扳把的棘轮，双手并用，就可以较轻松地拧紧或卸下螺丝。
After quenching and tempering, material H13 steel core bar was broken during alignment There are naphthalene fractures on macroscopical fractures surface.
H 13钢芯棒毛坯在调质热处理后的校正工序中发生断裂，宏观断裂面出现萘状断口。
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