Company company are based on scientific innovation, gravity separation technology as the core, set up thagold re-election, institute of technology, and with the Shandong gold institute, ChangChun gold researchinstitute, Shenyang institute of gold, Sichuan gold institute ect .we are recommended as placer gold machingcompany by Shandong institute .Company's gravity gold machines won seven patents and we passed thelS09001 quality system certification.