电子工业用7.5cm≤直径<30cm单晶硅棒
Monocrystals doped for use in electronics, in the form of cylinders or rods, 7.5cm or more, less than 30cm in diameter(containing by weight not less than 99.99% of silicon)
无需监管证件
无需检验检疫
2804611900999电子工业用7.5cm≤直径<30cm单晶硅棒(按重量计含硅量不少于99.99%)复制