Specifications Flooring galvanized steel grating 1.Best price and quality 2.Machines:7 running lines 3.Product capacity:100 tons/day 4.ISO Flooring galvanized steel grating is the most widely used.We have 7 running lines. Our capacity per year lead to 50,000 tons . The bearing bar comes in the form of a plain surface flat bar, commonly used for platforms, trench gratings, and stair treads. Ningbo Jiulong Machinery Manufacturing Co.,Ltd is the second largest steel grating manufacturer in China. We have 7 running lines with yearly capacity of 50,000tons. Jiulong grating and related steel products have exported to more than 30 countries. Choose Jiulong grating is your right decision!