Duong Long Zipper Co., Ltd. operates two production workshops in District 12, Ho Chi Minh City: a brass zipper workshop and a zinc alloy (zamak) die-casting workshop. Products are made to customer drawings or samples, and have previously been exported to South Korea.

Brass zippers made from raw copper wire: drawing, tooth attachment, polishing, surface finishing. Sizes #3, #5, #8, multiple colors.

Custom die casting from drawings or samples: zipper pulls, door handles, cabinet handles and other hardware.