Galvanized Steel Trench Cover Grating with Different Types
Ningbo Jiulong Machinery Manufacturing Co., Ltd is the second largest steel grating manufacturer in China. We have 7 running lines with yearly capacity of 70, 000tons. Jiulong grating has exported to more than 30 countries. Choose Jiulong grating is your right decision!
Product information:
This well cover is widely used in city construction projects due to its seal ability. Its frame is made up of angle steel, and tightly joined with the steel grating through the hinge. The checkered plate welded with the steel grating has the seal ability.
| No |
Item |
Description |
| 1 |
Bearing bar |
25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm |
| 2 |
Bear bar pitch |
12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 34.3, 35, 40,41,60mm. US standard: 1"x3/16", 1 1/4"x3/16", 1 1/2"x3/16", 1"x 1/4", 1 1/4"x 1/4", 1 1/2"x 1/4" etc. |
| 3 |
Cross bar pitch |
38,50,76,100,101.6mm |
| 4 |
Material |
Q235,A36,SS304 |
| 5 |
Surface treatment |
Black, hot dipped galvanising, paint |
| 6 |
Standard |
China: YB/T 4001.1-2007 |
| USA: ANSI/NAAMM(MBG531-88) |
| UK: BS4592-1987 |
| Australia: AS1657 |
Application:
Grating trench cover used in walkway, carriageway, courtyard or other constructions.They are used as cover for drainage trench, wireway, subway, air pit, etc.
Grating trench cover is composed of fixed frame and removable grating cover.
Why Choose us(NJMM):
Establish Year: 1992
History in this field: 27 years
Main Products:
A. Steel Grating, including plain and serrated steel graing, size and specification can be produced according to customer's requirements.
B. Stair Tread: There are 8 types of treads distinguished by different nosing & way of installation.
C. Drainage Pit/Trench Cover
D. Railing & Stanchion
Total Staff: About 300, including 50 managers, 10 technical engineers.
Total Area: 25, 000 square meters and with workshop area of 18, 000 square meters.
Main Equipment: 7 press-welding machines
Management System: ISO9001: 2008
Certifications: CE/ISO9001/ OHSAS18001/ISO14001/ISO18000
Advantage: High quality, Professional engineer, and Large production Capability
Brand: Long Ta
Honor: The largest steel grating manufacturer in China with government quality prize of Zhenhai district in the year 2007
NJMM is now supply to more than 30 countries and enjoying high reputation among all of our customers.
We will try our best to satisfy our customers with top quality, good service and most competitive price.
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