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1. Name: W-Beam also named two waves guardrail2. Material?High quality and low carbon steel3. Material Model: Q235B (S235JR / ASTM A283M) or Q345B (S355JR / ASTM A529M 1994)�4. Specification: 4320(3320-4320)*310*85*3(2.5-4.0) mm,Website:http://www.cnguardrail.com, available in different sizes5. Technique: cold rolled6. Finished: Hot dipped galvanized�7. Zinc coating thickness: 550-650 g/m2 (75-85�m)8. Other special specification as per client's requirement or drawings.�9. Certificate: ISO9001:200810. Standard: EN1317; AASHTO M180, Chinese standard11. Feature: Easy to clean. Strong plasticity .Oxidation resistance.The normal size.specificationmaterialsthicknesslengthwavewidthwaveheightprotective finishstandard4128*311*83(85)mmQ235(S235JR) or Q345(S345JR)2.75/3/4mm4128mm311mm83(85)mmhot dipped galvanization zinc plastic sprayed coating weight 550-1220g/m2China EUUSAAS/NZSISOCEetc.4320*311*83(85)mmQ235(S235JR) or Q345(S345JR)2.75/3/4mm4320mm311mm83(85)mmW-beam guardrails are installed in order to prevent out of control vehicles from rolling over or hitting roadside objects. This type of guardrail system helps minimize injuries and fatalities on roads all over the world. Our steel w-beam guardrails are flex beam guardrails and are the most common type of Armco barrier. This style of road safety barrier is commonly installed due to its durability and low cost.Semi-rigid guardrails such as this have been proven highly effective in reducing the severity of traffic accidents.Our w-beam guardrail is state-of-the-art highway safety barrier technology that is designed for maximum strength and durability. The steel construction allows for some give while still remaining strong.The road safety barrier undergoes surface treatment like zinc or PVC coating to prevent corrosion.