... strength 3.Heavy loading 4.Easy to install and clean Plug-in Type Steel Grating It is made by a kind of carbon ... . It is light, high strength, antisepsis, and can be used in business buildings, theaters, metros or ceilings, indoor and outdoor decoration ... (Load Bar) Specifications (mm):The specification of plain type, serrated type and I type bearing bar is 20 x 5 to 100 x ...