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See Chinese contents: GB 4674-2009 GB 4674-2009: Safety code for grinding machines
This Standard stipulates the safety technical requirements in design and manufacture, use, management and maintenance of grinding machines. This Standard applies to the grinding machines that use grinding wheel or grinding segment to conduce manual, mechanical or automatic process. This Standard does not apply to grinding processing machines that use grinding head with a handle, coated abrasive tools, oilstone and grinding paste.
