Drain Cover Steel Grating, Manhole Cover Grating for Walkway

Min.Order: 10

Product origin: Ningbo, Zhejiang, China

Infringement complaint:

Complaint

US$ 15 ~ 20

Description

Drain cover steel grating, manhole cover grating for walkway

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 & removeable grating cover.

Standards

The products come from our factory comply to international standards:

Country	Bar Grating Standard	Steel	Hot-dip Galvanizing
P.R.China	YB/T 4001.1-2019	GB/T700-2006	GB/T13912-2002
U.S.America	ANSI NAAMM MBG 531-00	ASTM (A36)	ASTM A123
U.K.British	BS 4592-1987	BS4360(43A)	BS729
Australia	AS 1657-1985	AS3697	AS 1650
Europe	EN 1090	EN 10025:1993	EN ISO 1461-1999

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: AS1657-1985

Appliacation:

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: 8 press-welding machines

Management System: ISO9001: 2008

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.

1. What standard can NJMM's steel grating meet?
Re: NJMM can fabricate steel grating according to the standards in different counties, such as China: YB/T4001.1-2007, USA: ANSI/NAAMM (MBG531), UK: BS4592 and so on.
2. What specification of steel grating can NJMM fabricate?
Re: NJMM can fabricate any specification of steel grating available, both in inch description and metric description.
3. What are the most commonly stocked panel sizes?
Re: The most common standard panel sizes are 3'X24',3'X20', 1000X6000mm, 1000X6100mm etc.
4. What are the most commonly stocked bar sizes? (Height and thickness)
Re: The most common bars are 1''x1/8'', 1''x3/16'', 1''x3/16'', 1''x3/16'', and 25x3, 30x3, 32x3, 25x5, 32x5, 35x5, 38x5 etc.
5. What is the difference between serrated and non-serrated bar grating?
Re: Serration is done for slip resistance. It is grating which has the top surfaces of the bearing bars notched.
6. What finishes are offered on bar grating?
Re: Bar grating comes in untreated, painted, hot dip galvanized.
7. Does NJMM do OEM?
Re: Yes.
8. How to contact us?
Re: Send your more inquiry details as below, and click " send " now.

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