... , developed and produced 4100, 4105, 6105, 6135, D226B, 6160,6170, WT615, WT618, CW200 series gas generator. A new technology called ATR ... , developed and produced 4100, 4105, 6105, 6135, D226B, 6160,6170, WT615, WT618, CW200 series gas generator. A new technology called ATR ...