... used for industrial platform, ladders, helps column, channel pedal, railway, high CeDao floor drain cap, platform scale, covers the grille, stereo ... of the constructions.Application:Power plants, chemical plants, oil refineries, steel mills, paper mills, mechanic plants, cement plants, municipalengineering, sewage ... -1:1995US: ANSI/NAAMM(MBG531-93)Austrilia: AS1657-1992 stainless steel bar grating