Shanghai Zhanyun established in 2002,after decade of development, now our business range expanded to many fileds.Hengxi as one of the subsidiaries of Shanghai ZhanYun which is specialized in manufacturing compressed air processing equipment,with strong technical force and abundant talent staff specialized in refrigeration, machinery, auto-control and business administration. The purification drying machine we developed is the post-processing equipment for variety of oil air compressor and oil-less air compressor. Compressed air purifying equipments are widely used in electricity, electron,...