Recycling tungsten need what qualification certificate

Recycling tungsten need certificates are "Hazardous Waste Operation License", "Hazardous Goods Road Transportation License" and "Chemical Recycling Qualification". A recycling qualification unit, there is a large amount of recycling tungsten oxide, Chongqing door-to-door recycling of tungsten oxide in stock, must be issued "Hazardous Waste Operation License", "Hazardous Goods Road Transportation License" and "Chemical Recycling Qualification" such certificates.