... 4.Used in flooring,walkway ect. Stair Tread antiskid Stair tread description Stair tread is made of steel grating, ... permeability. We can fabricate according to customers sizes. Stair tread specification1. Forge Welded Grating Standardizations: CountriesNational Standards ... widely used gratings,available for flooring,sidewalk,dranage pit cover,stair tread,etc. ♥ Serrated:Better non-skid property & ...