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. The products are used in such industries as petroleum and chemical, port, power, transportation, papermaking, medicine, steel and iron, food, municipality, real estate, manufacturing, etc.