.

 Grainage Trench Box Grate witout hinge Connection 

Grainage Trench Box Grate witout hinge Connectionport Serrated Bar Steel Grating Supplierpetroleum Serrated Bar Steel GratingQUALITY STANDARDS

GratingStandard

Material Standard

HDGStandard

Handrail Standard

YB/T4001-2007

GB704-88

GB/T13912-92

ANSI/NAAMM

ASTM (A36)

ASTM (A123)

BS4592-1995

BS4360 (43A)

BS729

BS6399/BS6180

AS1657-1992

AS3679

AS1650

1650-1985

SPECIFICATIONS

No

Item

Description trench drain grating cover

1

Bearing bar

25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm

2

Bear bar pitch

3

Cross bar pitch

4

Material

Q235, Q235, A36, SS304,SS316,

5

Surface treatment

Black, hot dipped galvanizing, painting

Steel trench coveris made by bearing bar and cross bar according to the flat-steel weft arrangement, in high-pressure spacing on resistance welder welded by cutting, incision, opening, overlock process such as processing and into customer requirements finished products.TECHNOLOGY

Items

Features

1

Good appearance:simple line, silvery surface, modern design.

2

Optimized drainage effect: water leakage area upto to 83.3% which is twice of the iron castings.

3

HDG: superior rust protection, free of maintenance and replacement.

4

Anti-theft design: Covers and frames are connected by hinges providing safe and convenient application

5

Save project investment: lower price and lower maintenance cost compared to iron castings.

6

High strength: higher strength and durability than iron castings, suitable for using in larger spacing and heavier loading conditions such as the docks and airports.

7

They are available in various types to satisfy the need for different environment, loading, spacing, and configuration.



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