Sealed Pickproof Well Cover with Good Quality

• Customization: Available
• After-sales Service: Online
• Steel Structure: Fence
• Model NO.: as per customer′s requirement
• Transport Package: regular export packing
• Specification: YB/T4001.1-2007, ANSI/NAAMM, BS4592, AS1657
• Trademark: Longta
• Origin: China
• HS Code: 7308900000
• Production Capacity: Over 50,000 Tons Each Year

Product Description

This well cover is widely used in city construction projects due to its seal ability. Its frame is made up of angle steel, and tigh-tly joined with the steel grating through the hinge. The checkered plate welded with the steel grating has the seal ability.

Ningbo Jiulong MachineryManufacturing Co., Ltd (NJMM) is a leading manufacturer specialized in producing press-welded steel grating. Its production scale, product type, and export volume are all at the top class in China. Located in the famous port city ---Ningbo, it has convenient transportation and superior location with only 30-minute drive to Ningbo Lishe International Airport and only 25-minute drive to Ningbo Port---the famous international sea port with the advantage of non-silting, deep-water and ice-free all year round.

Founded in 1992, covering an area of 25,000 square meters and with workshop area of 18,000 square meters, NJMM has advanced equipments, full-fledged technology as well as rich manufacturing and management experience in press-welded steel grating area for many years. NJMM is among the few leading manufacturers who have the entire production process from bearing bar to galvanized steel grating. Now NJMM has owned six International advanced auto-pressed welding machines, and the annual production capacity of steel grating, stair tread, trench cover, stanchion and guardrail is over 50,000 tons, of which more than 30,000 tons are for export. NJMM markets its products mainly in North America, South America, Europe, Oceania, Middle East , Southeast Asia, etc. Its marketing and service scope has covered all provinces in China and Longta gratings are widely applied to lots of renowned projects at home and abroad, such as sightseeing walkway of Sydney port, .Beijing Games stadium, Chunxiao oil-gas filed of East China Sea, and Hangzhou bay bridge. 

Being an advanced unit of environmental protection, NJMM had got the ISO 9001-2000 Quality Management System Certificate in the year 2001 and received government quality prize of Zhenhai district in the year 2007. With integral quality control system and complete inspection facility, NJMM can provide high-quality products for customers. NJMM always persists the idea of expanding scale to reduce the cost and striving for development with quality these years. Owing to superior location and as the leading role played in steel grating area in China, NJMM sincerely promises to all customers at home and abroad, "we will try our best to satisfy our customers with top quality, good service, most competitive price and fast delivery "


 

Packaging & Shipping

Company Profile

Manufacturing process:

Certifications

Our Advantages

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.

                                            
Our Mission

To provide the top quality products & best services with global expertise;
To build a harmonious environment for employees growing together with the company;
To contribute to the advancement of both industry & society.

FAQ

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.