4 die 4 blow BDF-64S DONGRUI screw bolt making machine is widely uesd in the fastener industry .This machine can produce different kinds of bolts in one time .Auto multi-station cold upsetting former is a specialized machine tool with high efficiency and automation among forging machinery , cold upsetting technique and auto cold upsetting formers are used as an important means for producing different kinds of bolts, screws ,rivets and nut in the field of fastener industry . because of the advantage of the cold upsetting equipment itself and the superiority of cold upsetting technique , the formers also are widely used in different national economic territories for producing fasteners and abnormal non-standard parts such as aviation ,steamer, machinery ,rail traffic ,vehicle, motorcycle, bicycle ,sewing machine ,construction ,furniture ,light industry and daily necessities, etc.
