... Bench: 1, The similar with steel and wood frame.just change the material of bench body into ... load-bearing performance is better than Steel and Wood frame.Solid physiochemical board(12.7mm thick)non-scratch, ... quality octagonal aluminum extrusions is used in this frame,connected by specially developed plug-in.Solid ... .3,The price of this frame is higher than Steel and Wood,it's more beautiful,but ...