1.Black square&rectanhgular steel pipe:ERW steel tube
2.Pre-galvanized square&rectangular steel pipe: Pre-galvanized square/rectangular tube is made of hot dipped galvanized steel strip directly.
3.Hot dipped galvanizedsquare&rectangular steel pipe : Hot dipped galvanized square/rectangular tube owns thicker zinc coating than pre-galvanized square/rectangular tube. Black tubes will be dipped into zinc pool for galvanizing.
4.Electro galvanized square&rectangular steel pipe : The technology of electro galvanized square/rectangular tube is similar to hot dipped galvanized tube, but the thickness of zinc coating is less than hot dipped galvanized tube.
5.Painted square&rectangular steel pipe:Painted square/rectangular to remove the rust and clean the oil first and then paint the required color paint.
Standard:GB/T6728:2002,ASTMA500,JIS G3466,EN10210,EN10219
Steel Grade:
GB/T6728:2002 : Q195 , Q235 , Q345
ASTM A500:GR. A , GR. B, GR. C , GR. D
JIS G3466 : SS440,SS540
Square & rectangular steel tube : The size can be based on your requirement to custom.
| Name |
Size |
Wall Thickness |
Length |
| mm |
mm |
m |
| Square tube |
10x10-500x500 |
0.6-25.0 |
1-12m |
| Rectangular tube |
20x10-200x400 |
0.7-13.0 |
1-12m |
Pre - galvanized pipe: pre-galvanized pipe is made of hot dipped galvanized steel strip directly .Usage: Used for low pressure liquid delivery, such as water, gas, and oil,fence,conduit,green house etc.Standard: GB/T3091 - 2001 ,BS1387 - 1985 , DIN EN10025 ,EN10219 , JIS G3444:2004 , ASTM A53. Steel Grade: GB/T3091 - 2001:Q195 , Q235 ;BS1387 - 1985 , DIN EN10025 EN10219 :S235JR;JIS G3444:2004:STK400 ;ASTM A53: GR. A , GR. B
Wuhan DACHU Traffic Facilities Co., Ltd is a professional manufacturer for Highway guardrails. The company is located in the intersection of Beijing-Hong Kong-Macao Highway, Shanghai-Chengdu Highway and State Road 318, Caidian District, Wuhan City, Hubei province, China. The location is sitting on the only "cross of gold" economic geography center, which has a unique and convenient transportation condition.
Our company has advanced production equipments, strong technical force, scientific craft process, perfect quality inspection system. The company is mainly engaged in traffic engineering products including roadway W-Beam Guardrail, post, deter block, Post caps, bracket, gasket, bolt, top end and so on. We are the first manufacturer and large production base who specialized in manufacturing road traffic safety facilities W-Beam Guardrail and other related products in central China. Our company adheres to the business approach 'Forge Ahead in Unity, Integrity and Win-Win positioning', and always adheres to the service concept 'Basing on Sincerity, Quality at First'.
Our company vision is: 'W-Beam Guardrail' as a carrier to build a safe, smooth and harmonious traffic environment for society.
Q: Are you trading company or guardrail factory?
A: We are guardrail manufacturer with 2 big factories,welcome visiting.
Q: Can you do the official test for the guardrail order, which authoritative organization is recommend?
A: Yes, the test for guardrail order can be arranged as per requirement, SGS test is recommended, and we could even do the test in the name of your company.
Q: Can you send us samples before we place the guardrail order, and how to charge it ?
A. Yes, we could send you guardrail samples for free, you just need to pay the postage fee.
Audited Supplier 
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