How to take-all LED?
fecha:2011-05-26 15:25
estado:para resolver
pregunta:admin
LED industry in the early growth of monopoly by the upper reaches of most of the profits, accounting for less than 20% of the number of the upstream industry chain enterprises can get 70% of the profits. And this one, of the substrate material industry technology development route is the hub of all aspects of technology.
Mature substrates for suppliers from around the world are few, are large-scale commercial application of no more than two techniques - the Japanese company Nichia Cree sapphire
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