How to recognize various types of covers on the road

At present, there are many well covers on the roads, which mainly deal with well cover faults in the four industries of tap water, gas, heat supply and municipal drainage. These well covers recognize this:

Gas Well Cover: The gas well covers are mostly round and have two sizes. The well covers are generally marked with the words “coal”, “gas”, or “fire” and there are pipes and sections in the well.

Water well cover: Most of the tap water wells are round wells and are usually located on the access road. Well covers are generally marked with the words "water", "tap water", or "waterdrops". The water meter wells are mostly located around residential buildings.

Heating well cover: The heating well is a circular well, and the orientation is not fixed, but it is generally not located on the main road. The well covers are generally marked with the words "heating" and "heating."

There are two kinds of municipal drainage well covers: one is a round well cover, which is divided into a rainwater inspection well and a sewage inspection well. The well covers are generally marked with the words “YS (rainwater)”, “WS (sewage)” and “bleeding”; One is an oblong well located near the road from 5 cm to 10 cm below the sidewalk.

Steel Grating

For products reference
No. Item Description
1 Bearing Bar Size 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc.
I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etcUS standard: 1''x3/16'', 1 1/4''x3/16'', 1 1/2''x3/16'', 1''x1/4'', 1 1/4''x1/4'', 1 1/2''x1/4'', 1''x1/8'', 1 1/4''x1/8'', 1 1/2''x1/8'' etc.
2 Bearing Bar Pitch 12.5, 15, 20, 23.85, 25, 30, 30.16, 31, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc.
US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc.
3 Cross Bar Size and Pitch Twisted bars 5x5, 6x6, 8x8mm; Round bars Dia.6, 7, 8, 9, 10, 12mm and so on.
38.1, 40, 50, 60, 76, 80, 100, 101.6, 120, 135mm, 2'' & 4'' etc.
4 Material Grade ASTM A36, A1011, A569, Q235, S275JR, SS400, Mild steel & Low carbon steel, etc.
Stainless steel SS304, SS316.s335jr
5 Surface Treatment Black, self colour, hot dip galvanized, painted, powder coating, electrolytic polishing.
6 Grating Style Plain / Smooth, Serrated /teeth, I bar, serrated I bar.
7 Standard China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88),UK: BS4592-1987, Australia: AS1657-1985,Germany: DIN24537-1-2006, Japan: JIS.
8 Panel Size: 3x20ft,3x24ft,3x30ft,5800x1000, 6000x1000, 6096x1000,6400x1000, as request
9 Application: oil refinery,petroleum and chemical Industry, Seaport and airport, power plant, transportation, papermaking, medicine, steel and iron, food, municipality, real estate, manufacturing,metallurgy,railway,boiler,etc

Steel Grating,Steel Bar Grating,Galvanized Steel Bar Grating,Steel Bar Grating For Bridge

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