... ZIPPER N51 AUTO LOCK 370PCS/KG N71 AUTO LOCK 350PCS/KG N81 AUTO LOCK 150PCS/KG. N81 AUTO LOCK SLIDER ... ZIPPER more informations:1. Zinc alloy zipper sliders2.Auto-Lock Sliders #3,#5,7#,#8,#10,and ... so on.3.Different technic ,Baking-paint,electroplating,nickle,gold,anti-brass.etc4.Various pattern&designs ... Luggages,Bags,etcProduction Certifications:ISO. SGS. N81 AUTO LOCK SLIDER FOR NYLON ZIPPER