http://www.tob-machinery.com/ China Portable Concrete Mixer factory Hangzhou Tob Engineering Machinery Co.,Ltd.,is one of the professional manufacturers of construction and engineering equipment in China. Situated in Jiande City, Hangzhou, which is about 100 kilometers away from Yiwu and 250 kilometers away from Ningbo Port, we enjoy an advantageous geographical location. The history of our manufacturing in construction machinery can be traced back to 1991. In 2008, the foreign trade department has been established and our goods started to be exported abroad. In 2016, we moved to the new factory in Jiande City, which covers an area