Shenzhen Municipality has officially implemented the National Sixth Emission Standard from July 1, 2019. With strong emission control technology strength, Weichai stood out in this round of Shenzhen's emission escalation. The WP4.6N engine equipped this time meets the national six b emission requirements and is the next generation high-end power of Weichai. With the advantages of high reliability, strong power, high efficiency and energy saving, it has won the favor of Shenzhen customers. Weichai has completed the comprehensive layout of the road country six and non-road country products. At present, Weichai's full range of National Six engines have been equipped with complete vehicles in batches, and will be listed and delivered to customers all over the country. Electric Fat Tire Bike,Fat Tire Electric Bike,Fat Tire Electric Mountain Bike,Electric Mountain Bikes Mid Motor FOSHAN GUANSEN BICYCLE TECHNOLOGY CO.,LTD. , https://www.htxbicycle.com
Weichai WP4.6N national six b engine 
Equipped with the Weichai National Sixth b engine, the new car will be on the job
On March 14, 2019, 32 liberation Longwei concrete pump trucks equipped with Weichai WP4.6N national six b engine were delivered to work and became the first batch of national six cars officially put into operation in Shenzhen.