Walk Through Frame refers to a variety of scaffolds erected at the job site for worker operation and for vertical and horizontal transport.It is different from H Frame Scaffolding. Walk Through Frame has the advantages of simple assembly and disassembly, good bearing performance, safe and reliable use, rapid development and the earliest development and the highest usage of mobile scaffolding in various new scaffolding. Mobile scaffolding first developed by the United States successfully, to the early 60s, Europe, Japan and other countries have applied and developed such scaffolding. Since the late 1970s, China has introduced and used such scaffolding from Japan, the United States, Britain and other countries.In the meantime the Galvanized Steel Scaffold Planks became popular too.