The National Six Standard is currently the most stringent emission standard in the world. After the official standard was released, Weichai first jointed the testing organization with the environmental protection authorities to conduct technical docking, determine the certification test plan, and carry out the national six certification work. Under the supervision of the environmental protection department, on October 4, 2018, Weichai WP4.6N completed all the test items for the rig and the whole vehicle, and successfully obtained the national six b emission certification report for the heavy diesel engine. According to Xiaobian, the engine must be certified by the environmental protection authority and must complete the following processes: Product parameter filing → product type test → obtain test report and upload environmental protection system → enterprise to declare environmental information → obtain environmental information disclosure form. Only when the environmental information is disclosed, the National Six certification will truly complete the official certification. Weichai successfully obtained the national six b certification of heavy-duty diesel engines, which is not only the result of the research and development of Weichai, but also the mission and determination of Weichai to win the blue sky defense war.
Steel bars are divided into hot rolling, forging and cold drawing
The diameter of cold drawn bar steel is 3-100 mm, and the dimension precision is high.
Material: Carbon Steel, Stainless Seel, Copper, Nickel , Aluminum, Titanium etc
Shape: Round, Square, Rectangle, Hex, Twisted, Rebar
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Weichai engine 
Employees celebrate the product passed the national six certification
Bar steel is widely used as semi-finished raw materials of various deep-processing steels.
Steel bar is adaptable to a wide range of applications, making it a cost-effective material solution for all types of commercial and industrial products. Common applications for steel bar include:
Construction & architecture
Automotive & transportation
Gas & oil
Renewable energy
Heavy industry
and many, many more
No. 000001! Weichai successfully obtained the national six b certification
On October 9, 2018, Weichai won the Environmental Information Disclosure of the Ministry of Ecology and Environment with the number of 000001, marking the successful acquisition of the diesel engine WP4.6N engine.