... surface330,450mmProcessing Obj.Metal etc.Weight8000kg Brief Introduction :J21 series press is regular open-die fixed platform press, it is the ... main equipment of stamping sheet metal production, and can be used for punching,blanking, ... ,100t ,125t ,160t ,200t,250t,315t,350t of pressing machine for your choice. J21S-100 deep throat punching machine for metal sheet