Standard:GB5237 Certificate:SGS,ISO9001,ISO14001,ISO/TS16949 Press:5MN-55MN Equipment:CNC center,NC lathes and etc. Square Aluminium Tube 6061 T61. Alloy/Temper:6060,6005,6063,6061,6082,T3,T4,T5,T6,F2. Thickness: 0.9mm-8.0mm3. Outer diameter: 12mm-150mm4. Packing: Inner packing: plastic film Outer packing: wrapped with brown paper Square Aluminum Tube 6061 T6