We understand that an auto body shop also has professional painters working for them. It is vital to have a variety of auto mixing cups to mix paints in. 
One of the most important and useful features of auto mixing cups is the mixing ratio that is printed on the containers. These ratios are mirrored, thus making them readable from the inside and the outside of the cup. These ratios are printed using a special solvent resistant ink that is bound to stay on, even if you try to power wash the containers.
A matching cover helps keep dust and other particles from getting into the paint. One order should last you for a long time because the cups and lids are made of good quality material and are very durable. But in case you decide to follow a 'use and throw' style, you could do that too, as these cups and lids are quite reasonably priced.
Key Features of paint mixing cup manufacturer and factory:
Good quality material makes the cups and lids durable
Printed ratios make it easy to mix the right proportions of paint
Special solvent resistant ink that does not wash off easily
Mirrored printing that allows you to read the ratios from the outside or inside of the cups