... company is the final manufacturer of many kinds of tyre , tube , pneumatic wheel , solid wheel , PU wheel , wheel barrow , hand ... 2. other size : 6*2 , 2.50-4 , 4.10/3.50-4 , 3.50-5 , 4.00-6 , 5.00-6, 3.00 ... can product goods in accordance with special need of customers.4. our products have obtained ISO9001 certificate.5. we insist ... , please contact with us . wheel barrow tyre and inner tube 16"*4.00-8