الوصف

Raw Material： Grid load flat steel bar：High-quality low carbon steel, galvanized steel, stainless steel, alloy steel. Horizontal pole：Q**5A or **4 stainless round steel, twisted square steel, square steel and hexagonal steel.   Classification：Welded steel grating, standard pressure lock grating, dense grating, ditch cover and ladders   Features：Strong steel structure made it have a high carrying capacity; With good corrosion resistance through surface by hot-dip galvanized; light structure easy to lifting; flat serrated have the character of safety and anti-slip; ventilation, lighting, heat, explosion-proof.   Finish treatment：Hot dipped galvanized, cold dipped galvanized, spray painting, dip anti-rust oil, can prevent oxidation.   Surface type：Flat type, serrated type, I shape type（According to requirement made different protective treatment).