MEMC still is produced and sell polycrystalline silicon, this is the crucial point material that produces primitive brilliant circle.
MEMC还出产和发卖多晶硅,这是出产原始晶圆的要害材料。
2
The experimental process on synthesis of roxithromycin was studied by using erythromycin oxime and MEMC as raw material under the catalytic action of anhydrous sodium carbonate.