GT21-2428/1.6-2.9PCF GT21-2428/1.6-2.9SCF GT212T-LF GT21-30/0.7-1.5PCF GT21-30/1.1-2.2SCF GT21-30/1.6-2.9PCF GT21-30/1.6-2.9PCF(ID) GT21-30/1.6-2.9SCF GT21-30/1.6-2.9SCF(ID) GT2134-01-A