... 4.ISO9001:2008 Steel grating steel gratign, steel gratings, hot dipped galvanized steel gratings, 1.Brand: XH (steel grating) 2.Material:steel ... made by pressing and welding,surface treatment should be untreated, painted or hot dipped 4.Specification:Bearing bar specification:20*3 ... send inquiry to: sales at chineseweldedwiremesh.com steel gratign, steel gratings, hot dipped galvanized steel ...