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