Galvanized flooring steel grating High strength; Non-skid Excellent rust-proof ... Airport projects, Water plants, Sewage disposal, Paper and pulp industry, Construction industry, Transportation industry, Automotive industryMaterials:Q235, A36, etc.Advantages: Steel grating offers ... :Untreatment: blackTreatment: hot dip galvanied Galvanized floor steel grating,flooring grating,trench grating,stair tread