we have introduced advanced aluminum welding and processing equipment from Germany and cooperated with Finnish Lamor Company on production technology of aluminum boats to develop and research aluminum alloy special workboats, yachts, assault boats, etc. The aluminum boats are usually used in oil production, port management, clear-up operation in inland river and sea, and also used in tourism and pleasure, rescue and relief work, border defense, anti smuggling, portal in the coastal waters and so on