... *550*430 MM 200CTNS/20# 420 CTNS/40#CharacteristicGeneral use for making bags, high intensity , the opening and closing operation ... special zipper, such as water-proof, boiling, low temperature, dual-purpose for PE/PP, double-color and vacuumized zipper to meet various ... re-inspected by employees. All records are stored in computer for data tracing and quality follow-up. 7.Excellent packaging: packaging ...