On October 12th~19nd, SUPERHAWK TYRE team and chief engineer were invited by Vietnam agent and visited the North and central Vietnam market.  This time some important dealers are visited and and their concerning questions are replied with professional technical analysis. SUPERHAWK TYRE visit bus station to follow up the really quality feedback, teach them how to use the tyres properly. 12R22.5 YB620 can run over 170000 kms, the tyre tread worn out very smoothly and the tyre sidewall still strong the no problem at all.Some damaged tyres was caused by misuse, inside and outside of the tyres were chcked and explained to them.