... : ISO9001,2000, CCC. ECE, DOT, SONCAP A.pulling strengh 7-9MPAB.elongation rate:500%C.30 ... contentD.OEM acceptedE.GCC,SANCAPE ,ISO9001 F.grade :A G.valve: TR4, TR87, TR13 H.durable motorcycle inner ... motorcycle butyl and natural inner tube2.We have a professional motorcycle tubes processing workshop.the tube ... our products.and also I will give you a detailed reply6.OEM accpted7.Material:Butyl rubber ...