it is made of aluminum 6061 or 6082(it is up to you),the main tube d 50*3 mm support tube 50*2mm brace tube 30*2mm,and the mength of truss are 1/2/3/4m
ECROBOT CO., Ltd, Business Registration Number : 220-88-71747, CEO J.W.Park, TEL : +82-2-552-7676, E-mail : E-mail : Contact us Address : (Hwanghwa B/D 11F, Yeoksam-dong)320, Gangnam-daero, Gangnam-gu, Seoul, South Korea