The current scaffolding accessories mainly by the main frame, horizontal frame,scaffolding,Base Jack,U Jack,cross bracing and adjustable base form. Cross-bar is also known as the diagonal pull rod, is a vertical cross-type connecting rod between the two masts. In the construction process, all the components have played a very important role. In the process of using, it is mainly reflected in the carrying capacity is good, safe and reliable, it is an essential building construction accessories products.