Experimental test of screening 
 Our technical engineers, according to internationally accepted test methods developed DT-200 standard test sieve, using the most advanced power generator of high efficiency, wide range, which can separate the 8 groups of samples; with the use of electronic timers, with analysis time to set the same kinds of materials to ensure minimum test error, accurately judge the quality of online products; there are other advantages: low noise, small size; a 0.038mm ~ 2.2mm size range of the sub-sample to meet the specifications of a multi-screen .