metal zipper

The basic standards are as follows:

The zipper, chain component is not aligned teeth, lack teeth, bad teeth.

The next stop is obvious zipper, did not pull skewed, head stuck on the next stop, stop.

Open end zippers (including double zipper) insertion, tail start-up flexible, Strengthen with adhesive tape and tidy. Strong cloth belt

Pull head surface adornment layer firm, uniform, no bubble, lose skin smooth, cavity defects, Flexible, trademark, turning clear chips.

The size of 3.3 zipper, Code for every 100 meters length loading 100m + 0.5 m, with bright color, the chain chain belt in batches GB250 reached the level prescribed color. With the color GB250 chain belt should reach the level of regulations.

Color fastness: rubbing fastness: chain belt rubbing fastness test with GB251 provisions 3 ~ 4.

Fastness to washing: chain belt washing fastness to conform to the provisions of GB250 3 ~ 4.

Each loaded with chain code within 100 meters length shall not exceed three joint.

To zip or other components do not contain azo, do not contain nickel, Replica Handbags needle detectors have special requirements such as agreed by supply and demand.

Detection method by professional inspection agency commonly.