NBN EN 12951-2005 标准详情
- 标准号:NBN EN 12951-2005
- 中文标题:预制配件屋面 - 永久固定屋顶的梯子 - 产品规格和试验方法
- 英文标题:Prefabricated Accessories For Roofing - Permanently Fixed Roof Ladders - Product Specification And Test Methods
- 标准类别:比利时标准NBN
- 发布日期:
Applicable to permanently fixed ladders made of metal which are permanently installed on the load-bearing construction of pitched roofs and which may be stepped or walked on for purposes of inspection, maintenance and repair of equipment installed ab
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