BS EN 12951-2004 标准详情
- 标准号:BS EN 12951-2004
- 中文标题:屋顶用预制附件.长期固定的屋顶梯.产品规范和试验方法
- 英文标题:Prefabricated accessories for roofing - Permanently fixed roof ladders - Product specification and test methods
- 标准类别:英国标准
- 发布日期:2005-09-15
This document applies to permanently fixed ladders made of metal which are permanently installed on theload-bearing construction of pitched roofs and which may be stepped or walked on for purposes of inspection,maintenance and repair of equipment ins
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