510-78 German Haver Sieve and air jet sieve
German Haver sieve. There are many sieve producers in German. Haver is one of them. The full English name of the company is HAVER & BOECKER OHG. The official website of the company is http://www.haverboecker.com/
The series of sieves produced by HMKTest especially HMK-200 Air Jet Sieve’s performance is constant with that of German haver sieve. HMKTest has a large number of customers inside and outside the country.
Air Jet Sieve https://www.isizer.com/air-jet-sieve-analysis-by-micron-air-jet-sieve-shaker/