1.Overhead Crane, Gantry Crane,Jib crane,hoist. 2.Manufacturer since 2003 3.ISO9001 ISO14001 OHSAS 4.Best solutions provid QD type double beam overhead crane1.IntroductionThis crane mainly consists of strong bridge beams,trolley-travelling mechanism,crab and electric appliances,and could be classified into several working duties,e.g. A5,A6,A7,according to the working frequency and pure working ...