translation.en: We see in our material flows that car steels don't become car steel again because of the contaminants of the coatings -- bismuth, antimony, copper and so on.
translation.zh: 从材料流我们发现，汽车钢材不能再当汽车钢材， 因为它的涂装含有： 铋、锑、铜、等等污染物。