... BD/BC-100A, BD/BC-100, BD/BC-145, BD/BC-200, BD/BC-258, BD/BC-300 , BD/BC-388, BD/BC-468, BD/ ... Wideband temperature variation design is applied to realize a free selection from the four levels, i.e ... 6. Man-machine engineering principle is applied. A balanced hinge is installed on door-frame, so ... to reduce coolness loss, which is perfectly energy-saving and environmentally friendly.9.The thick foaming ...