Charm Sciences, Inc. 659 Andover Street , Lawrence , Massachusetts 01843-1032 USA About Solutions products industries Latest news Downloads Companies Charm Sciences, Inc. Products Combo Tests Combo Tests From ROSA Milk 0 Share Charm Combo milk tests help producers and processors save time and operating expenses by combining two ROSA antibiotic or veterinary drug tests in one strip. Most popular related searches milk test strip milk producer milking veterinary drug milk test milk testing post-milking Customer reviews No reviews were found for Combo Tests. Be the first to review! Add your review Publish your review Great! review successfully added!