GB/T 4706.57-2002 Safety of household and similar electrical appliances—Particular requirements for floor treatment machines and wet scrubbing machines (English Version)
2008GB 4706.57-2008 Household and similar electrical appliances.Safety.Particular requirements for floor treatment machines and wet scrubbing machines
2002GB/T 4706.57-2002 Safety of household and similar electrical appliances—Particular requirements for floor treatment machines and wet scrubbing machines