CGSB 69.31-1989 标准详情
- 标准号:CGSB 69.31-1989
- 中文标题:
- 英文标题:Closer Holder Release Devices
- 标准类别:加拿大通用CGSB局CGSB
- 发布日期:
Establishes requirements for door closers combined with hold-open devices or free-swinging door closers combined with releasing devices. Performance tests covering operational, cyclical and finish criteria are included.
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