婷婷午夜激情,538精品视频在线观看,欧洲午夜视频,免费一级毛片女人图片,久久91精品国产91久久户,亚洲色中色,亚洲精品ty久久久久久久久久

　　Product type: Disc aluminum anode

　　Scope of application:

　　Aluminum alloy sacrificial anode is suitable for cathodic protection against corrosion of metals in ships, machinery and equipment,

　　Marine engineering and harbor facilities in seawater medium, as well as pipelines and cables in sea mud.

　　Detailed introduction:

　　The most commonly used aluminum alloy anodes are Al-Zn-In and Al-Zn-Hg anodes, which are suitable for cathodic protection of structures such as ships,

　　wharves, ports and Marine facilities, seawater cooling water systems and water storage tanks. Aluminum alloy anode production gb4948-2002 "aluminum - zinc - indium alloy sacrifice anode".