2007SN/T 1657.1-2007 Rules for the inspection of motor-operated electric tools for import and export.Part 1: General requirements
1997SN/T 0733.3-1997 Export hand-held electric tool Rules for the inspection of angle electric grinders
SN/T 0733.3-1997 Export hand-held electric tool Rules for the inspection of angle electric grinders was changed to SN/T 1657.1-2007 Rules for the inspection of motor-operated electric tools for import and export.Part 1: General requirements.