... 3T,16T,25T,63T,125T,the specifications of punching shear are su~eyed by the bit of ... plate:if the TB TL are changed the punching shear knife is also changed;TB,TL ... punching shear strength surpasses the nominal tonnage,you can reduce the material thickness and width. This machine ... building, haberdashery and hardware, doors and windows, machine and the electronics industry manufactured goods wash and ...