Hot DIP Galvanized Bar Grating Drainage Pit and Trench Cover

• Customization: Available
• Certification: CE, ISO
• Application: Steel Structure Walkway, Drain Cover
• Model NO.: as per customer′s requirement
• Shape: Flat Shape
• Manufacturing Method: Machine Welding
• Material: Carbon Steel
• Bearing Bar Type: Plain Type
• Surface Treatment: Hot-DIP Galvanized
• Market: Global
• Size: According to Customer′s Requirement
• Grating Standard: ANSI/Naamm, BS4592, Yb/T4001-2007
• Certificate: Ce/ISO9001/ISO14000/ISO18000/OHSAS18001
• Transport Package: Packaged by Steel Belt with Pallet
• Specification: YB/T4001 or NAAMM or BS4592 or JJS
• Trademark: Longta
• Origin: China
• HS Code: 7308900000
• Production Capacity: Over 70, 000 Tons Each Year

Product Description

Hot Dip Galvanized bar grating Drainage Pit and Trench Cover


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.

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:





Our factory:





Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM)

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

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.