... (QC12Y) Functions and FeaturesWith steel sheet welded structure ,hydraulic drive system ,accumulator back stroke ,it has characters of convenient ... .nc shearing machine,hydraulic swing beam shear,machine tool1)Series QC12Y hydraulic swing beam shear adopts steel-welded structure, ... eliminate stress ,high rigidity ,sturdy and durable .2)Hydraulic drive ,swing beam ,return of knife beam is smooth and ...