Buyer: Metal scraps, copper millberry, copper cathode, used rails, HMS 1&2, aluminum extrusion 6063, stainless steels, ubc, motor scraps, cast iron, recycle paper scraps old corrugated carton (occ), newspapers, sorted office paper (sop), electronic scraps laptops, server & hp motherboards, computer scrap ions, printed circuit boards (pcb), metal ingots, aluminum ingots, zinc ingots, lead ingots, sands & stones river sand, marine or sea sand