Steel grating is hot dip galvanized processing, offers the following advantages: saving materials, saving investment, easy installation, durable in use, light structure, no accumulation of dirt, good performance of ventilation, lighting, heat dissipation, anti-corrosive, anti-acid an alkali corrosion. Serrated grating welded by a flat serrated form,except for the Characteristics and applications of ordinary steel grid plat also has strong anti slip capacity,especially suitable for wet,slippery place,offshore oil platform. Serrated grating by hot dip galvanizing surface treatment,has very strong anti rust stress.