| Item | #3 | #5 | #8 |
| ≥Breaking strength crosswise of chain | 250 | 350 | 500 |
| ≤Tab pull-off strength | 4.0 | 7.0 | 7.0 |
| ≥Holding strength of top stop | 60 | 100 | 150 |
| ≥Holding strength of bottom stop | 40 | 70 | 100 |
| ≥Single top stop strength | 50 | 70 | 90 |
| ≥O/E chain crosswise strength | 70 | 110 | 140 |
| ≥Box slippage strength | 70 | 110 | 140 |
| ≥Pin slippage strength | 60 | 100 | 140 |
| ≥Slider puller pull-off strength | 150 | 230 | 280 |
| ≥Resistance to twist of puller and slider | 0.20 | 0.45 | 0.70 |
| ≥Slider mouth deflection strength | 50 | 60 | 80 |
| ≥Holding strength of slider lock | 25 | 35 | 60 |
| ≥Durability of zipper | 600 | ||
| ≥Single element strength | 30 | 60 | 90 |
Equipment
•Quality •Efficiency 
