... wider molds for motorcycle inner tubes which are popular in Nigeria, such as 2.50-18, 3.00-17 ... 18. 3.00-17inner tubeMy name is Erin working in qingdao dayangzhou rubber &plastic products co., ltd. ... which is specialized in manufacturing wheelbarrow/motorcycle tyre and tube.The main ... wider molds for motorcycle inner tubes which are popular in Nigeria, such as 2.50-18, 3.00-17 ...