a.full range in type & dimension b.largest production capability c.reliable manufacturer (a state-owned company)

 ZRHH STEEL GALVANIZED GRATING 

1.Comprehensive type and broadest range in dimension.

 

1.1  Material Q235 , or other equivalent material

 

1.2  Grating Conformity Standard: YB/T4001, ANSI/NAAMM-MBG531, BS4592, AS1657, JS3101

 

1.3  Grating Dimension

 

Load Bearing Flat Bar size	Thickness≥3mm, depth ≥19mm
	19X3,19X5,20X3, 20X5, 25X3, 25X4, 25X4.5, 25X4.7, 25X5…..40X6, 40X8, 40X10,….90X6….
Pitch of Load bearding flat bars(mm)	12.5,15, 20, 30, 30.6,  32.5, 34,  34.8,  35.3, 40, 60, 80……
Pitch of cross bars(mm)	38.1, 50, 50.8, 70, 75, 80, 100, 101.6, 102……

 

The sizes and dimension is not limited to above.

 

1.4  Grating type: flat bar: plain type, plain I type, serrated type, serrated I type; cross bar: round type and square twisted type.

 

 

 

 

 

Square twisted cross bars are mostly used.And round cross bars are normally used for fine-mesh steel gratings.

 

 

 

1.5  Finishing treatment: a. Galvanized, b. Untreated (black self-color), c. Painted

 

2. 11 sets of press welded (electro-forged welding) production lines creat largest production capability, flexible and controlled delivery to cater to the variety of needs of customers.

 

3. The high-tec techneque and equipment guarantee high quality of gratings. Most of machine were imported from Japan, Germany,Switzerland,etc.

 

4. Capable design can make grating customized according to site requirement.

 

 

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