Galvanized Steel Bar Grating Stair Tread for Manhole Cover

Products name: Steel bar grating stair tread

1. Material: Stainless or mild steel

2. Finishing:
Hot Dip Galvanized, Powder Coated, PVC Coated, Self Color, Red Oxide Primer, Other Paints Enamel, Epoxy etc. As specified.


3. Grating are mainly of two types:
1). Press locked gratings
2). Electroforged gratings
I)Stair Threads
Ii) Accessories
Iii) Metal Finish Description

4. Cross bars and bearing bars
The bearing bar steel is of two types which are produced in equivalent standard.
Plain: The top surface is smooth & plain.
Serrated: The top surface is serrated for providing more anti slip Property.
Width: 25mm, 30mm, 32mm, 40mm
Thickness: 3mm, 5 mm, 6mm


5. Centre to Centre Bearing Bar Spacing:
This is the centre distance between two adducent bearing bar, Standard Size 30/ 33 / 41 mm Cross Bar:
The cross bar steel is of two types
Round
Square Twisted: Normally Square twisted bar is used because it provides anti skidding property. Normally cross bar size is of 6mm.


6. Application:
Galvanized steel grating are widely used by various plants such as electric power, petroleum, chemical industry, metallurgy industry, machinery industry, shipbuilding, harbor, oceanographic engineering, building, paper mills, cement plant, medicine, spinning and weaving, foodstuff factory, transportation, municipal administration, parking lot, etc.