... free 2.provide clean air for the feed 3.speed up the feed oxidation poultry farming equipment1.ZYSR poultry farming equipment applicationsZYSR series roots blower ... packing,paper making,aquaculture,sewage treatment,pneumatic conveying,etc2.poultry farming equipment specifications Bore:50-200mm Air Capacity:0.8- ... ,flexible joint,non return valve. oxygen generator automatic poultry farming equipment