... horizontal thrust", which greatly reduces the catch wheel and riding wheel’s wear, cylinder body is in smoothly ... selfaligning type tug device’’ which makes the riding wheel and the rolling ring forever with linear contact, ... high and new technology development zone, Zhengzhou, Henan, China (Mainland)Zip:450001Telephone:0086-371-67853977Mobile Phone:0086 ... .lee1906 industrial sludge dryer made in China