Home / Standards / GB 3883.12-91 GB 3883.12-91 Safety of hand-held motor-operated electric tools — Part 2: Particular requirements for concrete vibrators 手持式电动工具的安全 第二部分:混凝土振动器的专用要求 Standard Type GB ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A