Recently in the market popular with a pull type self-locking slider, which comprises a head body, also includes a locking mechanism connected pull head body; we said self-locking mechanism is composed of a guide sleeve, connected with the pull head body, and the guide sleeve and pull head body corresponding with top needle guide Kong Zucheng the same; thimble, through the guide sleeve and pull head body thimble guide hole, self-locking with clamped between the two adjacent teeth, or leave the chain teeth to unlock; a spring is abutted on between the guide sleeve and the thimble. The pull head pull structure of ideas, not only saves the assembling procedure of pull head with the pull tab, to further strengthen the self-locking and positioning pull head, the guide sleeve screw connection, tight fit or stuck on the pull head pull head body, easy disassembly.

There is a market for raw materials made of zinc alloy zipper, this relates to the technical field of zinc alloy zipper, zipper pull solves the technical problems of high resistance, easy to damage, including rice and chain teeth zipper, which is characterized in that the chain of rice by tooth zinc alloy hot die casting molding, polishing and electroplating after the automatic feeding machine attachment formed in the zipper; and sprocket tooth type for European rice or corn type or Y type teeth; including meshing and mounting ends, as a whole structure of zinc alloy casting off the ends of the chain tooth rice general long 3 8mm, width 3 7mm thick, 1 - 3mm, the resistance of small, zipper pull pull freely, not easy to damage, long service life.