Xiaogan Hubei Zippers Final QC Check Service
Key Inspection Processes for Zippers Visual Inspection Check for consistent color, finish, and surface defects (scratches, dents, or discoloration). Verify alignment of teeth/slider and ensure no missing or misaligned elements. Functionality Test Test the slider’s smooth movement up and down (no jamming or stiffness). Ensure the zipper locks properly (if applicable) and stays closed under slight tension. Strength Testing Pull Test: Apply force to the zipper tape and teeth…





















