GB/T 3883.403-2017
手持式、可移式电动工具和园林工具的安全 第4部分:步行式和手持式草坪修整机、草坪修边机的专用要求
Safety of motor-operated hand-held, transportable and garden tools―Part 4: Particular requirements for walk-behind and hand-held lawn trimmers and lawn edge trimmers
GBT3883.403-2017, GB3883.403-2017