Home / Standards / GB 4949-85 GB 4949-85 Methods for chemical analysis of aluminum-zinc-indium series alloy sacrificial anodes 铝-锌-铟系合金牺牲阳极化学分析方法 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