we are the first chinese tyre factory to produce the Giant OTR tyre, from equipment to technical, from the material to workmanship, we always keep ahead in China. Therefore, our OTR tyres' quality is the best in China, the sizes such as: 30.00-51 33.00-51 36.00-51 40.00-57 35/65-33 45/65-45 The pattern is E4 and L5. Welcome to contact me, i will give you our best offer.