Metal zipper manufacturers, there are many types of pull the main common are automatic lock pull head, needle lock pull head, no lock pull head, double open tail pull the first four forms

 

(1) Auto lock slider (Auto lock slider) referred to as self-locking head, pull the first pull of the nose has a self-locking small block, under the action of the spring force, can automatically insert the chain between the pull head lock. Opening and closing zipper, pull the tab to drive a small block from the chain.

Automatic pull lock head:

 

A pull-lock self-locking head, pull the head of the plate (pull the nose) to install a pull-tab automatic lock;

 

Uses: The most popular models, children, adult clothing, shoes, etc. are almost all used.

 

B. Double pull self-locking head, - pull the head of the board (pull the nose) and the next board (pull the nose) to install a pull the automatic locking slider; use: special requirements in the product, rarely used .

 

C. Rotating self-locking head, pull the slider around the upper and lower plate around the automatic locking slider. Uses: can be used in the double-sided wear of clothing, often use models.

 

D. Shrapnel double lock (YG head)

 

Uses: pants chain, bag chain.

(2) Analysis of metal zipper manufacturers, needle pull head, pull the first pull with 1 to 2 blocks, pull down piece, the block is inserted between the chain of teeth, the pull head fixed. Uses: bedding, shoes and so on

 

(3) without locking the first, no locking function of the slider. It has a single pair of points: Uses: luggage category,

 

(4) stealth slider for the more tight class clothing, women's clothing for class.