Import 5# Derlin Open-End — Buy in Bulk from Supplier in China

The 5# Derlin open-end zipper from Shenzhen Do-Well Industry And Trade is a separating fastener engineered for medium to heavy fabric applications. The number 5 gauge denotes 5 mm chain width measured across the teeth, a standard sizing in the zipper industry that balances strength with flexibility. Derlin, DuPont's branded acetal homopolymer, forms the injection-molded teeth, offering low friction, dimensional stability, and resistance to moisture and organic solvents. The open-end construction incorporates a box and pin mechanism at the bottom stop, allowing complete separation of the two tape halves for garment entry and exit.

Acetal homopolymer teeth exhibit a flexural modulus of approximately 380,000 psi and yield strength of 10,000 psi, providing crisp engagement without the brittleness associated with lower-grade nylons. The automatic locking slider contains a small metal or plastic pawl that engages between teeth when the pull tab is released, preventing inadvertent opening under tension. Tape substrate is typically woven polyester twill in matching or contrasting color, with standard widths of 25 mm or 32 mm depending on application. Shenzhen Do-Well Industry And Trade offers color matching to Pantone references, though minimum order constraints for custom dye lots should be confirmed directly.

This zipper configuration is widely specified for outerwear, tactical and military garments, motorcycle apparel, and heavy-duty bags where load-bearing capacity and frequent cycling are expected. The 5# gauge sits between lightweight 3# applications such as dress trousers and heavy 8# applications such as luggage or marine covers. Buyers include apparel manufacturers, tactical gear contractors, and bag producers serving European and North American markets. Shenzhen Do-Well Industry And Trade carries imported supplier tier and harbor trust tier classifications, but no response history is recorded. Confirm MOQ, lead time, and whether Oeko-Tex or bluesign certification is available for the finished zipper assembly.

Shenzhen Do-Well Industry And Trade is headquartered in Shenzhen, Guangdong Province, China, a city that hosts one of the world's densest concentrations of zipper and trim manufacturers. The company holds imported supplier tier and harbor trust tier classifications, indicating cross-border trade experience with baseline platform verification. No response rate or average response hour data is available, so buyers should anticipate possible delays in initial quotation and prototype approval.

The supplier profile does not disclose factory ownership structure, production floor area, employee count, or annual turnover. Shenzhen Do-Well Industry And Trade presents itself as a manufacturer-exporter of zippers and related fastening products for fashion, outdoor, and home textile sectors. The listing emphasizes color range and automatic locking mechanism rather than proprietary molding technology or testing laboratory accreditation. Buyers should determine whether the company owns injection molding equipment for Derlin teeth or sources components from sub-suppliers, as this affects quality consistency and customization turnaround.