... walls, ventilation ducts, rain troughs, sewers, etc.2 container manufacturingContainers for producing petroleum and barrels ... beer, barns, distribution cabinets, containers, fertilizer boxes, etc.3 household appliances, furnitureBackboards shells of washing machine, refrigerator ... different kinds of smoke tubes, pipes, mechanized refrigerated warehouse, etc. About us :SINO EAST STEEL ENTERPRISE CO., ...