| Item | #3 | #5 | #7 |
| ≥Breaking strength crosswise of chain | 380 | 600 | 650 |
| ≤Tab pull-off strength | 4.0 | 5.0 | 7.0 |
| ≥Holding strength of top stop | 50 | 90 | 110 |
| ≥Holding strength of bottom stop | 40 | 80 | 100 |
| ≥Single top stop strength | 50 | 70 | 70 |
| ≥O/E chain crosswise strength | 70 | 100 | 120 |
| ≥Box slippage strength | 70 | 100 | 130 |
| ≥Pin slippage strength | 60 | 90 | 100 |
| ≥Slider puller pull-off strength | 90 | 200 | 250 |
| ≥Resistance to twist of puller and slider | 0.20 | 0.45 | 0.50 |
| ≥Slider mouth deflection strength | 43 | 60 | 80 |
| ≥Holding strength of slider lock | 20 | 35 | 50 |
| ≥Durability of zipper | 600 | ||
Equipment
•Quality •Efficiency 
Pre-sales Service
After-sales Service
