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GB 4053.1-1993 English PDF (GB4053.1-1993)

GB 4053.1-1993 English PDF (GB4053.1-1993)

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Newer version: (Replacing this standard) GB 4053.1-2009
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GB 4053.1-1993: Safety requirements for fixed steel vertical ladders
This Standard specifies main technical requirements for design, manufacture and installation of fixed steel ladders. This Standard is applicable to steel ladders used for production in industrial enterprises. This Standard is not applicable to steel ladders used for ships, firefighting, communication towers, telephone poles and chimneys.

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