1. Steel Prop is made of upper plate, inner tube, outer tube, pin,nut,sleeve and bottom plate.
2.The structure is simple and it's easy to assemble and disassemble, so it can be reused.
3.Steel Prop can be adjusted to different hight of the construction.
4.It's for supporting concrete slab, beam, timber and formwork which is strong and reliable for interior building construction. 

                                    Sleeve                                                                      Jack Base