... supply many kinds of butyl and natural tube in china. 3.00-10 Butyl inner Tube Our certificate is ECE,DOT,CCC and so ... The available size are as follows: 250-4, 300/350-4, 350/410-4, 350-5, 350-6, 300-8, 300-10, 350-8 ... , 600/650-14, 7.00-14, 7.00-16, 7.50-16, 225/250-17, 250-16, 250-17, 250-18 ... /60-13, 130/70-12, 120/70-12 etc. Butyl inner Tube 3.00-10