(1)This kind of scaffolding is mainly made of main frame, main pipe, sub-main pipe, cross brace and joint pin. (2)The structure of the scaffolding is simple, so it is easy to assemble and disassemble. (3) The scaffolding can be reused. Even though it is out of work, the material can also be recycled. (4)Steel scaffolding can be adjusted when it is together used with the scaffolding jack base and U head.