1,high quality rubber 2,suitable for otr tire 3,high quality certification 4,good sales service 5,best price Inner Tube Suitable For Agricultural Tire/Guide Wheel With Size Is 18.4-30 1, Main Technical Parameter: SIZE INNER TUBEMAIN SIZE(mm)BASIC PARAMETERMIN.SECTION WIDTH(mm)MIN.OVERALL DIAMETER(mm)MIN.WEIGHT(KG)MODEL VALVE MOUTH5.00-101151349440Z1-02-1Z1-02-25.00-1211914705606.00-1219116518406. ...