>   Miraculous complete production equipments- complete of huayuan technology,Ф4600×Ф2730×51000 scrubber, FRP-PPФ500 separator and Ф1700×9500 venturi dryer, Ф1400×7300 venturi scrubber manufactured according to DIN standard for S.B.Company of France. High and straight, nonstraightness of high tower is not more than millesmal. Large but not awkward, moving load of large equipment is complex. Success from difficulties. The key to the diffculty of chemical equipment lies in ensuring tower efficiency and important process parameters.