This is an inquiry message about Hull Anode in the 108th China Canton Fair. (这是一条买家关于"Hull Anode"的询盘信息,来自第108届中国广交会。)Inquiry Message (询盘信息) Hull Anode How do I visually tell whether I have a zinc, magnezium or aluminum anode installed on the transom of my boat? The only writing that I can see is ""CAMP"" and ""Do Not Paint"" It measures 4.75"" x 8.25 x 1.25"" and it bolts on. Contact Info (联系信息) Ken Edwards K0H 1Y0 Company: The Electrical Doctor E-mail: electricaldoctor@bellnet.ca electricaldoctor@bellnet.ca