... mesh+brass frameBrass mesh+brass frame Application: The standard testing sieve is applied to exact mesh analysis, test, measure ... pharmacy, foodstuff, metallurgy, construction etc departmentsFeatures:The frame of testing sieve is made of SUS 304# stainless steel, the thickness ... two-double, so that the testing sieve is more firm and durable. The testing sieve is processed by use special electrochemistry ...