customized beam lifter machine

Such kind of cranes equipped with special spreader are mainly used for loading, unloading and moving of large bridges. Such kind of cranes equipped with special spreader are mainly used for loading, unloading and moving of large bridges. The cranes are suitable for multi-span because they can rotate 90 degree. Brief Introduction to Quality Control: A complete quality control system has been set up to guar antee that all products of the company comply with national technical