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4.4.4 Repeated Opening and Closing: After 15,000 cycles, the rotation position change must not exceed 0.5 mm.
5.5.4 Operating State: Install the rotary handle and mating block on the test simulation window. Apply a force F of 70 + 8N in the opening direction of the handle while the sash is closed.
| Category | Standard Name | Model Clauses |
|---|---|---|
| Window Hardware | JG/T 213-2007 | 4.4.4 Repeated opening and closing |
| Window Hardware | JG/T 213-2007 | 5.5.4 Repeated opening and closing |