Zipper Chain: Zipper Chain (牙链)
The semi-finished assembly of two tapes with their teeth already attached, supplied as a continuous roll measured in metres or yards. Chain is cut to length and fitted with stops, sliders and end parts to make a finished zipper. Uniform pitch, clean selvage and stable tape width are essential for automated cutting and sewing. Buyers specify chain length, gauge, colour and number of pieces per roll.