... 1110 6/41.5M*0.65M Qingzhou JuLong Dredging Machinery Co., Ltd. was established in 1990. Our company is ... develops and produces sand-dredging machinery, sand making machinery, dredging machinery, and mineral processing machinery in China.We provide a ... mining ships, high-standard sand washing machinery, sand making machinery, transport ships, stone crushing machinery, large and medium-sized dredging ...