Why don't ergonomic chairs get on commercial vehicles?

The reason why commercial vehicles do not use ergonomic seats is because the seat design is not ergonomic and the driver sits for a long time. The ergonomic chair is generous, unique, fashionable and light. It is a new type of environmentally friendly and healthy chair widely used in modern families, entertainment, Internet cafes, hotels, leisure, conference rooms and office computer desks. The design principle releases the adjustment of nature and humanity, and is suitable for all kinds of body shape adjustment. The material is mainly made of environmentally friendly materials.