1. P teeth, also known as round teeth, are characterized by the round teeth of the zipper. This kind of zipper is common in life, also known as ordinary zipper;
2. Y teeth (imitation YKK type), which is often called square teeth (y-tooth zipper), are characterized in that the teeth of the zipper are square;
3. Fine tooth zipper is characterized by double point and double pull, that is, you call double point teeth. At present, the technology is not very mature and the output is relatively low.
Introduction to metal zipper production process:
1. Previous process: warping - webbing - dyeing - ironing - removing mi - electroplating - selling color
2. Post process of open zipper: sizing - gluing and punching - threading left and right pins - threading zipper head - upper stop - cutting - finished product inspection and packaging.
3. The previous process of closed zipper: arrange the appropriate size - you can skip the tape and arrange the required size - work code - wear the zipper head - put on the stop - cut - Inspection and packaging of finished products.
