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 30kg. The bottom horizontal tensile strength is 11kg. The top tensile strength is 9kg. The sliding pull resistance of each tooth is 4kg. The compression strength is 5kg. The sliding pull resistance of the box is 14kg. The general strength is 15kg. The deflection resistance is 17kg. The zipper is applicable to casual wear, skiwear, wind shirt, knitted sweaters and childrens wear.