Shanghai dongao machinery technology co ltd is the leader in Chinese Conveying Industry and we are No 1 manufacturer of the Air conveyor industry in China .Dongao was established in 2008.12.26 .based on its parent company, Shanghai Aodun Light Industry Machinery Co., LTD. It is located in Shanghai national chemical industrial park and focus on developing and designing high-tech and new products. Our company mainly serves for products are PET beverage production line, from the bottle preformed, filling, sterilization, labeling to packaging. Our main products are PET empty bottles air conveyor, ultra-clean conveyor, PET bottle test system including PET bottle mouth defects detection system, online PET bottle counter, pressure tester, explosion-proof and cracking test equipment and other products, chain plate conveying, rollers conveying. Our products connect blower, filler and labeling and then turn into a whole line.