Hi, i'm building a multirotor prototype heli. http://img337.imageshack.us/img337/3483/a6500c.jpg I would need the chrome parts and http://img692.imageshack.us/img692/1746/a6550poot.jpg this landinggear holder. To give a size indication: the carbon tubes are 20mm outside diameter. Are the materials strong enough for mechanical objects to use in a prototype ? Is there any weight/material indication available ? ty !