Schválení Jenbacher engines 2, 3, 4 A and 6 C/E, gas class A, MWM, Wartsila
GE Jenbacher engines type 2/3/4/6 on gas class B and C, MAN M 3271-4, MAN M 3271-5
Dresser-Rand (Cat. I,II,III), Cooper-Superior, Caterpillar, Waukasha-VHP, MWM Typ-D, SKL Magdeburg