... Steel Grating Material:Stainless steel,Hot-dipped Galvanzied Use:platform,ladders,floor drain,floor drain ISO9001 Hot -dipped Galvanized Steel Grating ... welding,surface treatment should be untreated,painted or hot dipped Galvanzied Specification:steel gratingBearing bar specification: ... ladders, helps column, channel pedal, railway, high CeDao floor drain cap, platform scale, covers the grille, stereo, ...