EN 29519 : 1993现行
SHIPBUILDING AND MARINE STRUCTURES - RUNGS FOR DOG-STEP LADDERS
出版：Comite Europeen de Normalisation
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基本信息
标准编号： EN 29519 : 1993
标准类别：Standard
出版单位：Comite Europeen de Normalisation
标准页数：0
标准简介
Describes the types, dimensions, material, manufacture and designation of rungs for dog-step ladders. Dog-step ladders, formed from single rungs, may only be used where fixed vertical ladders with stringers cannot be installed and should serve only to bridge minor differences in height.
