... lock zipper slider metal zipper slider2.Specifications:Size:3.5YG ,4.5YG, 4YG, 5YG, Type:Single lock & Double lock Single ... different requests.3. Material: H65 brass/H85,90 copper/Iron 4. Application: slider for metal zippers,Jeans, clothes, bags. 5. ... Standards: American standard :ASTM- D2061 British standard: BS3084-1992, Chinese standard :QB/T2171-95 6. Special requirements: Stamping Logo ...