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Report on arizona copper smelter air pollution control technol-ogy, april 1979.5a high ievel of volatile impurities means a total smelter charge containing more than 0.2 percent arsenic by weight, 0.1 percent antimony, 4.5 percent lead, or 5.5 percent zinc, on a dry basis.Code of federal regulations, title 40, part 60.
We are a large-scale joint-stock enterprise integrating scientific research, production and sales.Our leading products have crushing equipment, sand making equipment, mobile crusher, etc., Each type of product is with complete specifications. All products have passed ISO9001, CE and GOST international quality system certification.