... treatment plants, municipal works, sanitation engineering and other fields of the platforms, walkways, trench trestle bridge cover, covers, ... ladders, fence, fence, etc. Specification of steel grid mesh seriesSeries distanceTraverse line distanceLoad flat specifications (wide ... Specification:19-w-4, 15-w-2, 30/100, 40/50, 60/100 and allGrating Application:steel platform, flooring and ...