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GB/T 31255-2014 English PDF (GBT31255-2014)

GB/T 31255-2014 English PDF (GBT31255-2014)

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GB/T 31255-2014: Safety of machinery -- Safety specification for the design of industrial type stairs, working platforms and walkways
This standard specifies the safety design specifications for industrial stairs, working platforms and walkways. This standard applies to industrial stairs, working platforms and walkways used to access the fixed facilities of machinery.

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