outdoor galvanized ASTM 123 floor drain grate cover steel grating informations:1.Material: Mild (low carbon) steel (CN: Q235, US: A36, UK: 43A) or stainless steel; 2.Surface treatment:galvanized {CN: GB/T13912, US: ASTM (A123), UK: BS729} ,painted,untreated; 3.Style:serrated,serrated-I shape; 4.width and length are all on request. 5.Certification: ISO9001:2008,CE; 6.Characteristics:light weight, high bearing capacity, safe , skid-proof, easily fixed and dismantled, economical ,long life and durable, ventilated and penetration of light, easily to be cleaned, beautiful in appearance. 7.Application:Widely used in electricity, petrochemical, chemical industry, metallurgy, machines, modeling, port, marine engineering, construction, paper  making, medicine, textile, well cover, suspended ceiling, ventilation and penetration of light, etc; 8.Packaging Detail: pallet or according to the customers' requirements.