1.ISO9001:2008 quality systems
2. 4 running lines
3. full range of steel gratings
Trench covers | |
Unique features: | 1.Attractive appearance : clear and smooth figure, silvery appearance, modern-styled.
2.Optimal drainage: Leaking area can reach 83.3%, which is as twice as cast iron.
3.Galvanized surface: rust-proof, anti-corrosion,Maintenance convenient.
4.Economical: much more cheaper than cast iron.
5.Heavy-duty and large loading-bearing capacity, can be used in wharf,airport etc. |
Application: | urban road, public squares, gardens, wharf, airport, parking, highway, railway, industrial engineering and so on. |
Type of bearing bar | W--welded steel grating L-- pressure-locked C-- socket-welding |
Bearing bar centers: | 15-30, 40, 60, 80, 90 mm etc. with 30, 40 mm recommended. |
Cross bar centers: | any greater than 30mm is ok. with 50, 100mm recommended. |
Surface treatment: | G - galvanized P - painted U - untreated |
Grating standard: | China: YB/T4001.1-2007(YB/T4001.1-1998) Britain: BS4592-1:1995 US: ANSI/NAAMM(MBG531-93) Austrilia: AS1657-1992 |
Marks: | Example: G 325/30/100 WFG |
Type:
A variety of specifications can meet all demands of shapes, sizes, spans, load capability in different conditions.
1. Drainage cover with embedded parts:
2. U-type:
As to ditches without edge, U-type Trench covers are very easy and economical.
3. Security type: steel grating hinged pit cover
theftproof design: the cover and the frame are connected with hinges, so it's convenient for opening- up and very safe.
4. Common ditch covers:
5. Installation type:
