Founded in 2007, the young-sung sand-drilling machinery plant, located in qingzhou, shandong province, with easy transportation, and specialized design and production of dredging boats \/silk boats \/silk boats \/grassers \/safflicting boats \/ sand-washers and complete parts for more than a decade, has been well received and trusted by a wide range of users in over 20 provinces, including shandong, hebei, shanxi, shashi, henan, anhui, hubei and north-east provinces, as well as in several countries abroad。