Lead recycling standards, East Hutchison renewable resources (certified), Tangxia lead recycling by Dongguan Chang Ping Tung Kee provide renewable resource recycling. Dongguan Chang Ping Tung Kee renewable resource recycling (www.dongji8.com) is specialized in the "whole plant equipment for recycling, electronics recycling inventory, metals recycling, metal recycling, plastic recycling" of the enterprise, the company of "honesty, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Xue Wendong. (A) the non-public sector has become the subject of renewable resource recycling. With the rapid development of China's socialist market economy, the original state of the planned economy and supply and marketing materials sector monopoly system has undergone fundamental change. A large number of rural people into this small investment, low-tech industries lead recycling projects, individual and private, joint-stock enterprises flourished; state-owned enterprises due to recovery of heavy historical burden, low cost, management continues to decline, had to have been diverted to jobs. Currently, the recycling industry, individuals and other non-public joint-stock enterprises accounted for 70 percent of state-owned enterprises accounted for only 30%. Treatment of the electrical connector board gilded pieces of debris waste, discarded cell phones, computers lead recycling, scrap, such as printed circuit boards to put people in a muffle furnace, heated to 450. When C, burning 1.5h, remove organics lead recovery agent, after cooling, the original scrap foil and the substrate surface fall off, the mixture in the flushing, the flushing stopped visible foil slower sedimentation rate than the high lead recovery matrix, the matrix is In the bottom of the vessel sink fast, and gradually sinking gold suspended in water, then pour water in the container, the gold flowing out, the substrate remaining in the container. To achieve a recovery of gold from scrap, the residue treated with an acid dissolved in some metallic gold surface to give a purity of about 99% gold.