... , hospital use circle with seam or not round or square laboratory test sieve, standard test sieve , Stainless Steel Standard Test ... , foodstuff, metallurgy, construction etc departmentsFeatures:The frame of testing sieve is made of SUS 304# stainless steel, the thickness is 0 ... full time test personnel and special test apparatus, such as microscope, projector, balance and dens meter etc. and it is ...