Frame scaffold systems, are widely used in the North America and some of the Asian and European regions, and different regions use different styles, for example, in Southeast Asia, probably the 3' or 4' (914mm or 1219mm) wide x 1700mm high walk-thru is the dominant style in US west regions undoubtedly the most prevailing style is the snap on system.      
      
Advantages:      
1) Reasonable structrue, simple assembly, quick operation, safety & reliablity      
2) Easy to transport and knock down, high effciently, save massive manpower and resource.      
3) Easy to carry and operate with the weight about 20kg/pcs.      
4) Assembly & disassembly with hands only.     

Please contact us for more information.