Free cutting brasses with little lead(the trademark: HDT-1, HDT-2, HDT-3), are our company's patented technology products. The product cutting value is fine, is low including the lead quantity (smaller than extremely 80PPm), the cadmium is smaller than 2PPm, undergoes the SGS examination, meets the environmental protection material requirement completely, conforms to the European Union RoHS instruction authentication through CQC. Corporation own drafts the establishment unit for the national standards. Standard number: YS/T647-2007.