drum groupReel group is an important part of lifting machinery and equipment, drum group is an important part of lifting machinery and equipment.Notice: if the lifting height is higher, in order to reduce the reel size, the surface with guidance of spiral grooves or smooth drum multilayer winding, but steel wire rope wear faster, applicable to slow and the type of work lighter and lower tonnage crane. Steel plate drum set is mainly applicable to large tonnage, high performance requirements of the lifting machinery and equipment.