1.Suitable for all wheels of bus and truck on common or high grade road. 2. Certificate : E&S Mark, Reach, ISO,GCC,Inmetro, 1. Suitable for all wheels of bus and truck on commor or high grade road.2. Low rolling resistance , higher original mileage, excellent fuel efficiency make it suitable for high speed.3.Designed for low noise emission, excellent traction and steering performance,with good ...