... *17036#---1200#1910450*120*17036#---1200#1910 Tornado Abrasives Manufacturing Co., Ltd. Shanghai in the Pudong New Area, Pudong International ... company has been established for 10 years, specializing in manufacturing, research and development, sales polishing abrasive products.The production ... , the monthly output of more than 600 million.Manufacturing a diameter of 300-500M thickness of the large ...