... Won national invention patents, This production line for production of single-layer tiemian compressor, but the price is twice as far below ... the layer 2 sets of pressing machine. Workers number and single compressor are interlinked, reduce the ... of management. Labour, electricity is about 50% of the single machineTechnical parameter:Model: NYJ-1200/1400/1600/2000/2400/2800Total ...