According to the shape of the surface,they can be divided into tooth-shaped steel grating, pressure welded steel grating, I-type steel grating and composite steel grating.
According to the surface treatment,they can be divided into hot-dip galvanized steel grating, spray paint steel grating, stainless steel grating and original steel grating.
According to the surface treatment,they can be divided into hot-dip galvanized steel grating, spray paint steel grating, stainless steel grating and original steel grating.