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201-59 What is the function of fisher sub sieve sizer pressure knob?
201-59 What is the function of fisher sub sieve sizer pressure knob?
Fisher sub sieve sizer pressure knob is used when use HMK-22 to test average particle size. When the sample tube or standard tube is placed on the test base, rotate the knob clockwise to compress the upper and lower ends of the sample tube or standard tube and seal them tightly.
Fisher Sub Sieve Sizer https://www.hmk-test.com/hmk-22-fisher-sub-sieve-sizer/