| After-sales Service: | Online Technical Support |
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| Warranty: | 1 Year |
| Certification: | CE, ISO, SGS |
| Samples: |
steel,hot dipped galvanized,stainless,Min orde:1
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| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Audited Supplier 
| Drainage steel grating cover drainage ditch material | Steel,Low carbon steel,stainless steel&Q235,A36,SS304,SS316L,S235JR |
| Surface treament | Black,hot dipped galvanized,paint |
| Bearing.bar width*thickness | 25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm |
| Bearing 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. |
| Bearing bar shape | Plain Style Steel Grating,Serrated Style Steel Grating and I Bar Type Steel |
| Drainage steel grating cover drainage ditch standard | China:YB/T 4001.1-2007,USA:ANSI/NAAMM(MBG531-88),UK:BS4592-1987,Australia:AS1657-1985,Japan:JJS. |
| Cross bar shape | round,twisted,bar shape |
| Cross bar pitch | 38,50,76,100,101.6mm |
| Galvanizing standard | US:ASTM(A123),CN:GB/T13912,UK:BS729 |
| Market distribution | America 45%,Europe 26%,Middle east 38%,Other place27% |
Welded Process of drainage steel grating cover drainage ditch
Inspecting process of drainage steel grating cover drainage ditch
1.How to get a exactly quotation ?
There are three ways:
*You can tell us the length and width of steel grating and the thickness and depth of bearing bar
and the pitch of bearing bar and cross bar.
*You can tell me the carrying capacity of per square meter and the maximum pitch.
*You can send me a drawings with size clearly on it about drainage steel grating cover drainage ditch
2.What are the common size ?
*The pitch of bearing bar is 30-45mm in commen,is largely used in industrial field.
*The pitch of cross bar is 100mm and it is the most economical and lightest type.
*The sewage grating with the pitch of 30mm between bearing bar and of 100mm between cross bar
is the most popular type used at home and outside.
3.What standard can we provide to you ?
We can produce drainage steel grating cover drainage ditch according to different countries' standard.
Such as China YB/T4001.1-2007,USA ANSI/NAAMM(MBG531-88),UK BS4592-1-1995, Australia
AS1657-1992 and so on
4.How about your factory ability?
we have more than 100 staff,and they are professional in manufacturing steel grating they
have 20 years of experience in this part of manufacturing process.
We have a complete set of production line. We only produce drainage steel grating cover drainage
ditch,so we are more professional than other factorys.
5.Which countries do you export to?
We currently export to Singapore,Vietnam,USA,Kuwait,Austria, Japan and so on.
6.Sample service
we can supply free drainage steel grating cover drainage ditch sample and the sample will be readly in five days.
7.The delively time
We just need 15-20 days to produce 20' container(about 20tons) after recieving the 30% deposit payment.
HAIAO Wire Mesh Product Co.,Ltd is a company engaged in production and exportation of metal wire,mesh,
fencing, steel grating products .our high grade protective steel grating has been sold to over 80 countries and
regions in Europe,America,Africa,middle East and Asia.
Suppliers with verified business licenses
Audited Supplier 
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