sludge rotary drum dryer-Factory sale 1Gas/fuel oil/El-ctricity/ ... widely used.Export country of the Drying Equipment: India, Vietnam, Korea, Peru,Kazakhstan, Mongolia, Ecuador, Iran, Pakistan, Australia, the Middle East ... , West Zhongyuan Road, Zhengzhou City, Henan Province, China. // sludge rotary drum dryer /* sludge rotary drum dryer with CE and ISO9001:2008 Certificate ...