Amazon.com: Meillia 48 Inch #10 Two Way Separating Jacket Zipper Heavy Duty Plastic Zipper Black Large Resin Zippers for Sewing Coat Jackets Clothes Parka (48")
zipper - Wiktionary
UCAN Zippers USA | Los Angeles 90058 – UCAN Zippers USA is the last zipper manufacturer in Los Angeles and one of the very few in the US