This part of GB/T 6730 specifies a tin content testing method by the pyrocatechol violet cetyltrimethylamine bromide spectrophotometric method.This method is applicable to natural iron ores, concentrates, sinters and pellets. The concentration range in mass fraction is from 0.005% to 0.200%.
定价: 372元 / 折扣价: 317 元 加购物车

我的标准
购物车
400-168-0010




对不起,暂未有相关搜索结果!










