1. This ditch covering grating is good looking, easy to install, and excellent for drainage.
2. It is often used for roads, streets, factories, rapid transit systems, subways, sport, grounds, parks, industrial zones, parking lost, filling stations, etc.
3. Support frames required.
4.. The depth inside of angle must be the same as the depth of trench cover.
Manufacturing instructions to Hot Dip Galvanized Grating:
(1) The hot-dip galvanized grating must be welded by a resistance welder, and can not melt the parent metal.
(2) Material: SS-400 steel.
(3) 3.0t Galvanizing Amount: over 500g/m2 ; 4.5t Galvanizing Amount: over 610g/m2.