This company mainly produces various series of drillingscrew with tapping screw dry wall screw fiber board screw self - tapping screw machine screw all kinds of non-standard goods.
公司主要生产各系列的自钻自攻螺钉、干壁钉、纤维板钉、自攻螺钉、机螺钉及各种非标准产品。
2
A section bar of a self tapping screw for saving drilling hole is provided with high-tightening force, which belongs to the design preparation technical field of the section bar.
可免钻孔上自攻螺丝并具有高紧固力的型材，属型材的设计制造技术领域。
3
This company mainly produces various series of self-drillingscrew with tapping screw, dry wall screw, fiber board screw, self-tapping screw, machine screw, all kinds of non-standard goods.