Aluminium wire as a good anticorrosion material,in steel structure surface anti-corrosion(container,dam and sluice gate,Ductile Iron Pipe,bridge etc.)
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North Micro's LED etching machine uses a number of 12-inch integrated circuit advanced technology, product technology performance ahead of Japan, France, the United Kingdom, South Korea and other foreign competitors, the product has sold more than 30 sets in the past one year, accounting for domestic More than 50% market share. 
Recently, Beijing North Microelectronics Co., Ltd. and Tongfang Optoelectronics Technology Co., Ltd. signed a contract for the sale of three LED etching machines with a contract value of RMB 12 million.