radial truck tyre 11R22.5 ply rating: 16 tread depth: 16mm passed certificate: DOT,ECE,ISO.CCC. Qingdao Weihang Radial Truck Tyre 11R22.5size: 11R22.5ply rating: 16PRweight: 55kgstread depth: 16mm Our tyre has passed the certificate of DOT,ECE,ISO,CCC.With good quality, well price and best service.If you have interested in our tyres, pls feel free to contact me.