Liaoning shuangyi Silicon Industry Co., Ltd.

Industrial Silicon quality standards

Number One

Number Two

Nnumber Three

Number four

Others

Poducts of Our Company :Silicon 421

Grade	Si Content Not less than%	Impurity content is not more than（%）				Impurity aggregate
Grade	Si Content Not less than%	Fe	Al	Ca	P	Impurity aggregate
421	99.20	0.40	0.20	0.10	0.006	0.80

Al