... are widely used in loaders, cranes, aerial platform fire trucks, rollers, motor graders, pavers, wheel excavators, trucks, trailers, etc ... QY20T, QY25T, QY30T, QY50T and QY75T, etc., big tonnage cargo truck, pavers, graders, road rollers and excavators and so on. Both the ... brake shoe and brake bracket use the nodular cast ...