... dipped galvanized,Painted,Untreat Trench Grating Steel 1.Brand:Wangyuan (steel grating) 2.Material: steel grating is made of low carbon ... 3)good appearance(4)durable in use 6.Application:steel grating is mainly used for industrial platform, ladders, helps column, ... , highway, railway guardrail etc. We are factory for grating, we can produce according to your requirements.WorkshopIn storePackage ...