The zipper bears high tenacity and corrosion resistance. Due to the fact that the tape has been treated with stone washing, dry cleaning, sand wash, acid rinsing, anti-crease finish and rinsing, it bears no decoloration and low water shrinkage. The tape is free of nitrogen, heavy metals, nickel, carcinogens and allergens. Zipper teeth are uniform. The zipper is in strict conformity to ASTM standards. The lateral tensile strength is 45kg. The bottom horizontal tensile strength is 14kg. The top tensile strength is 12.5kg for open-end zippers and 14kg for 2 way open-end zippers. The sliding pull resistance of each tooth is 6.5kg. The compression strength is 6.5kg. The sliding pull resistance of the box is 21kg. The general strength is 24kg for open-end zippers and 21kg for 2 way open-end zippers. The deflection resistance is 20kg. The zipper is applicable to casual wear, fashionable dresses, skiwear, sports wear, wind shirt, knitted sweaters and childrens wear.