... kinds of butyl and natural tube in china. 3.00-10 Butyl inner Tube Our certificate is ECE,DOT ... , 175/185-15, 600/650-14, 7.00-14, 7.00-16, 7.50-16, 225/250-17, ... 250-16, 250-17, 250-18, 250/275-10, 250/275-17, 250/275-18 ... -17, 300/325-17, 300-18, 300/325-18, 325-16, 325-17, 325-18, 275/300-19, 275/300- ... 21, 350-16, 350-17, 350-18, 4.10-18, 90/90-18, 110/90-16, 130/90-15, 130 ...