Material selection of steel wood made of laboratory bench is called steel wood laboratory bench. The steel wood structure of the laboratory bench contains two structures: one is C-frame type, one is H-frame type, C-FRAME type structure is simple, flexible, can be combined at will; H-type dignified generous, load-bearing performance is good, the C-frame can choose to hang the cabinet push the cabinet structure, easy to install dismantle, conducive to the laboratory cleaning work; H-frame of the steel structure, so that the laboratory bench can reach more than 500KG load-bearing to meet the requirements of the use of large precision instruments. The steel structure of H-frame makes the lab bench able to load-bearing more than 500KG, which meets the requirements for the use of large-scale precision instruments.