ZhuCheng ZhongXin Industry & Trade Co.,Ltd was established in 2007, located 150km from Qingdao, we specialize manufacturing Mineral Chemicals with good quality control system:effective mineral collects and depressors, the products are widely used ...

Mingyu Company lays much emphasis on the quality and clients. We serve clients with guideline of being responsible for every working procedure, product client. What we have done is believe that best way to develop market. All products passed authentication ...

Midwell Group is a professional manufacturer and exporter of mining agent. 80% our products are sold to international market, including Australia, South America, North Africa, Central Asia. To ensure that the production process can meet environmental ...