Isuzu Isuzu GIGA EXR 4x2 6-wheeler Tractor Head Truck new for sale in Philippines Isuzu Isuzu GIGA EXR 4x2 6-wheeler Tractor Head Truck new for sale in Philippines Isuzu Isuzu GIGA EXR 4x2 6-wheeler Tractor Head Truck new for sale in Philippines Isuzu Isuzu GIGA EXR 4x2 6-wheeler Tractor Head Truck new for sale in Philippines Isuzu Isuzu GIGA EXR 4x2 6-wheeler Tractor Head Truck new for sale in Philippines