... C4 size, Non-standard size make from 85x85mm to 324x458mm, Equipment used suction head automatic pumping of paper, drawing pin ... Germany Technical west indentation device with a suction cylinder automatic feeding, folding,gumming and automatically counting and the Branch ... seam and middle seam) ,wallet style , diagonal style envelope make on this machine . ·max.size of Envelop:324x458mm ·min. size of ...