该机是将任何混杂在羽绒制品填充料中的微量金属，在被填充到羽绒制品内之前，就把它它排除掉，这将大大提高羽绒制品的合格率，降低返修率，这给羽绒制品行业带来很好的社会效益和经济效益。

This machine is any trace metal mixed with the filler material of feather products, be filled down products before, put it excluded, which will greatly improve the pass rate of down products, reduce failure rates to feather productsindustry to bring good social and economic benefits.