What is the normal price of the front of a large semi-trailer?

Hello, landlord! I am a professional truck mechanic! Generally around 250,000 ~ 500,000. There are comfortable, reinforced and luxurious semi-trailer heads, and the price depends on the vehicle configuration, engine, transmission and driving form. Jianghuai is relatively cheap, while Jiefang, Ou Man, China Heavy Duty Truck and Shaanxi Automobile are relatively expensive. I hope the landlord will adopt it! Thank you. Bye!