الوصف

1. Steel prop is mainly made of bottom plate,outer tube ,swivel nut,cotter pin,upper plate and the accessories of folding treipod,head jack,the structure is  simple and flexible.
2.The structure of steel prop is simple, so it is easy to assemble and disassemble.
3.Steel prop is adjustable because the inner tube can extend and shrink in the outer tube,so it can be adjusted according tothe required height.
4.The steel prop can be reused. Even though it is out of work,the material can also be  recycled.
5.Steel prop can be adjusted according to the different height of the cnstuctions.