... compound from Bridgestone. 4.With our own tech department. Radial truck tyres 1. Model : TBR 2.Size:7.50R20,9.00R20, ... 11R22.5,315/80R22.5 3.Certifications:ECE,DOT,GCCRadial truck tyres :1 mainly for the short-medium distance trasportation for ... Chemical( tire department) : Our products include radial, bias, agricultural and motorcycle tyres. All of them have attained certifications of DOT, ECE ...