Qingzhou Kaifeng Technology Co., Ltd. is an integrated manufacturer and seller of sand washing machines, sand mining vessels, dredging vessels, gold panning boats, sand screening machines, sand suction vessels, and sand making machines. Our company is a comprehensive production manufacturer that encompasses scientific research and development, mechanical design, production and installation, as well as after-sales service. Component design and final assembly can both be completed in-house.Our products include a variety of large, medium, and small sand挖掘 equipment, sand mining machinery, medium and small-scale cutter suction and self-priming dredging equipment, dry magnetic separation and screening ship series, dredging series, screening series (dry selection series), and various mineral selection series; washing stone and sand washing machines used for road and railway construction; as well as gold panning equipment, sand transportation equipment, sand screening machine...