... ,Hot-dipped Galvanzied Use:platform,ladders,floor drain,floor drain ISO9001 Steel Grating For ladders Material:steel grating is made ... 4)durable in use Application:steel grating is mainly used for industrial platform, ladders, helps column, channel pedal, railway, high CeDao ... enterprises, stadiums, garden villas fences, but also can be used as the residence outside the window, the balcony guardrail, ...