We manufacture various kinds of rubber products and metal products, including
(1) tyres,
(2)inner tubes(natural rubber inner tubes, butyl rubber inner tubes),
(3)wheels(pneumatic rubber wheels, solid rubber wheels,tubeless wheels, foam wheels, rubber foam wheels, polyamine foam wheels, castor wheels),
(4)wheel rims, bearings(cylindrical roller bearings, spherical roller bearing),
(5)hand trolley and wheel barrow and so on.

Now I will show you the partial model sizes of the wheel rims as your reference
2.50-4 3.00-4 3.00/3.25-8 3.50-4 3.50-5 3.50-8 4.00-6 4.00-8 4.00-10 4.50-8 4.70-10 5.00-6 6.00-6 6.50-8 and so on.