As a part of JBS Machinery Group,Shandong Rocky-mac International Trade Company is a steel structure construction buildings trading enterprise integrated in production and exporting.Located at High & New Technology Industries Development Zone of Linyi Shandong China. Mr.fang is the owner of the Jinbaoshan machinery(JBS Group) led forward to provide there customers needs and services.He started Jinbaoshan(JBS)to supply the quarry machinery and equipment that related to quarry and construction,and Rocky-mac to supply full range of steel structure buildings.Quality or nothing is our slogan.