Hebei Pingnuo Technology Co., Ltd. New material technology promotion service; Sales of metals (excluding rare and precious metals), graphite products, carbon products, graphite materials, metallurgical furnace burden, metallurgical materials, fertilizers, coke, building materials, steel products, standard parts, wires and cables, rubber products, stainless steel products, aluminum alloy products, sanitary products, daily necessities, chemical raw materials (excluding dangerous chemicals), mechanical equipment, electrical equipment, refrigeration equipment, computer software and auxiliary equipment. Recycling, wholesale and processing of scrap metal (limited to branches); Import and export of goods or technology