and seen in action: 
M777 
RM-70, DANA, 2S1 Gvozdika 
BM-21, 2S1 Goździk ud8BM-21, 2S1 Goździk 
CAESAR 
FH70 D-30 Artillery donated, but not seen so far: 
PzH 2000 
M109 AHS Krab 
Zuzana 2 
M114A1 Missing: 
AS-90 
K9 Thunder 
Archer