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 The standard drag-type test cup is constructed of a 70 durometer upper section with a 90 durometer lower section for greater strength. The two compounds are bonded to a steel sleeve and base to form a rugged, long lasting test cup.
 Bar-type tubing test cups are available for five tubing sizes, various tool sizes and in 70, 80, and 90 durometer nitrite rubber compounds. A 90 durometer natural rubber compound is also available for all-weather operation. Field tests have repeatedly proven the heavy-duty capabilities of this cup.
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