... 3.Surface: Hot dip galvanised. 4.Best quality and service. A Type Steel Grating Clamp1. OEM service.2. Material: St37.2.3 ... Surface: Hot dip galvanised.4.Best quality and service.Grating type:Press Locked Gratings, Heavy Duty Gratings, Press welded gratings, ... Steps, Sun shield gratings, Full gratings, Shelf Gratings, Sawtooth Grating, Super Anti-skid protection and special forms ...