Xi 'an has a decocting machine, which is recycled by Xi 'an Donglong Materials and Pharmaceutical Intermediates Recycling Co., Ltd. ... the recycling and sales of productive scrap metal, unproductive scrap metal and nonmetallic renewable resources. Sales of machinery and equipment, machine tools, plumbing equipment, wires and cables, copper, aluminum, steel, railway equipment and accessories, metal materials, building materials, mechanical and electrical equipment, Wujinjiaodian, transformers, chemical products (excluding inflammable and explosive dangerous chemicals), fire-fighting equipment, auto parts and local products. Construction of house demolition project.