River sand dredging equipment is a special dredging machine with ISO9001:2008.  River sand dredging equipment is flexible to most kinds of geologic structures and has a lot of obvious advantages :

     Market and future are our unremitting pursuit, Yongli people forge ahead, and are commited to provide the best products to the whole world. We stand on the local, and put our eyesight on global market. We have been dedicated to create the first brand in this industry.

1. Yongli company signs a  long-time after-sale service agreement with customers.

2. We provide rational and practical design according to customers' request.

3. We send engineers to assemble and test the machine within the period as agreed in the contract.

4. Within warranty period, we provide  free repair if quality problems emerge.

5. We provide training of operation and maintenance for customers as agreed in the contract.

6. We supply high quality accessories in low price.

7. We make an excellent filing of customers for long-term following-up service.

 Qingzhou Yongli Mining and Dredging Machinery Co.Ltd, located in Qingzhou city--one of the Nine Ancient Cities in China ,is a leading company of China mining equipment .We are the professional ore machine manufacturer,which is professional to produce mining equipment with ISO9001:2008 and patent.

      In 1999, we developed the iron sand dredging machine .

      In 2006,we started to manufacture cutter suction dredger .

      In 2008,we based on the nine terrains in Africa,Southeast Asia and China domestic the zirconium ,diamond ,gold mining machinery (pulsating sluice box ,centrifugal concentrator ,jig,shaking table)were developed adopting foreign technology ,and won high praise of customers throughout the world.