Qingzhou JuLong Dredging and Mining Machinery Co.,Ltd ,located in Qinghzhou City-one of the nine oldest cities in china. is a professional manufacturer of dredgers, waterweeds processing machines and related products with about 20 years experience. Our main products include sand suction dredgers, desilting dredgers, waterweed cutting ships, and mineral and metal processing machines. With an excellent technology team, we can design and manufacture high-quality dredging and mining machines according to customers