... good service 4.CNC Maching Detail information for aluminum extension ladder Aluminum Alloy 6063 6005 6061Certificate: ISO9001/ISO14001 ... extension ladder wrapped in plastic film, carton box, wooden crates or as your demandLoading capacity: 10-12tons for 20'container, 22-25 Tons for ... tilt and turn window, etc.3Industrial Aluminum Profile for solar energy, LED, machinery, advertisement, transport, auto ...