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 50kg. The bottom horizontal tensile strength is 7.5kg. The top tensile strength is 6kg. The compression strength is 5kg. The general strength is 11kg. The bottom tensile strength is 6kg. The deflection resistance is 18kg. The zipper is applicable to T-shirts, trousers and skirts etc.