Specifications

ISO 9001-2008 A leading professional manufacturer of Sump Cover, well cover, dicth cover, grating, drainage system.

This company is specialized in all kinds of steel gratings with better quality, competitive price and faster delivery time. Such as drainage pit cover,trench cover ,floor drain , sump grates , Gully grate , ditch grates , well grates etc .We have many regular grating customers in USA ,AUS,Kuwait, UAE, Malaysia, ,Philippine,Singapore, UK,New zealand,Tunisia ,South Africa and so on. More than 60% of products is exported to the worldwide.

There are many different types for your choice to meet different load and clear span which are made of steel grating.They are have many adeantages,such as easy construction,big bearing capacity,good looking and long durability through hot galvanizing for the surface treatment.They are widely used in municipal engineer walkways,shools,residential quarters,garden facilities,stadium,port,industry,oil and chemistry projects etc .

We can also manufacture the product according to customer 's nend , any shape and size with different bearing capacity and span.In this case, the bearing capacity is up to the grating which you choose as your practical demand.

1) Material: Carbon steel or stainless steel

2) Bearing bar specification: 20 x 3mm to 100 x 10mm

3) Bearing bar pitch: 12. 5mm x N (N=1, 2, 3, 4, 5, 6, 7, 8), also according to client's
requirements (30, 40, 60mm are recommended)

4) Cross bar pitch: 50, 100mm (recommended)

5) Maximum length of black panel: 10, 100mm

6) Surface treatment: Untreated, paint or hot dip galvanized

7) Steel grating standards: A) China: YB/T4001-1998 B) USA: ANSI/NAAMM (MBG531-88) C) UK: BS4592-1987 D) Australia: AS1657-1985 Japan:JJS.

Ningbo Lihong Steel Grating Co., Ltd

ISO9001-2008

STEEL GRATING SPECIALIST, YOUR GRATING SOLUTIONS

Sales Director: Mr. David Huang, TEL: +86 13757445098, +86 574 88073967, FAX: +86 574 88073962

No.	Item	Description
1	Bearing Bar	25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc US standard: 1''x3/16'', 1 1/4''x3/16'', 1 1/2''x3/16'', 1''x1/4'', 1 1/4''x1/4'', 1 1/2''x1/4'', 1''x1/8'', 1 1/4''x1/8'', 1 1/2''x1/8'' etc (Mr. David Huang)
2	Bearing Bar Pitch	12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc. (Mr. David Huang)
3	Twisted Cross Bar Pitch	38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc (Mr. David Huang)
4	Material Grade	ASTM A36, A1011, A569, Q235, S275JR, SS304, SS400, Mild steel & Low carbon steel, etc
5	Surface Treatment	Black, self colour, hot dip galvanized, painted, spray coating (Mr. David Huang)
6	Grating Style	Plain / Smooth, Serrated /teeth, I bar, serrated I bar (Mr. David Huang)
7	Standard	China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88), UK: BS4592-1987, Australia: AS1657-1985, Germany: DIN24537-1-2006, Japan: JIS (Mr. David Huang)