510-77 German IMR ES-90 Air Jet Sieve and German GKM ES-200SL (portable) Air Jet Sieve
German IMR ES-90 Air Jet Sieve and German GKM ES-200SL (portable) Air Jet Sieve are not the same type of air jet sieve. But they both adopt air jet sieving principle. The former has a square appearance and the latter has a circular appearance.
HMK-200 Air Jet Sieve
The functions and performance of HMKTest HMK-200 Intelligent Touch Screen Air Jet Sieve are much higher than that of these two air jet sieves. The performance and functions of these two are equal to that of HMKTest HMK-200 Economical Air Jet Sieve.