GB 17761-2018.Safety technical specification for electric bicycle. GB 17761规定了电动自行车的整车安全、机械安全、电气安全、防...
GB 17761-2018 电动自行车安全技术规范
GB 17761-2018.Safety technical specification for electric bicycle. 1范围 GB 17761规定了电动自行车的整车安全、机械安全、电气...