
SHIPBUILDING AND MARINE STRUCTURES - RUNGS FOR DOG-STEP LADDERS
出版:Comite Europeen de Normalisation

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基本信息
標準編號: EN 29519 : 1993
標準類別:Standard
出版單位:Comite Europeen de Normalisation
標準頁數:0
標準簡介
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.