This company mainly produces various series of drilling screw with tappingscrew dry wall screw fiber board screw self - tappingscrew 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
To analyze corresponding relation between waster appearing in the course of producing of tappingscrew and quality of steel.
分析自攻螺钉生产过程出现的废品与钢质量的对应关系。
3
It mainly introduces a new joint technology of self-tappingscrew, insert joint after injection molding, snap joint, etc.