Model Name: KT-373E Multi-cylinder Hydraulic Machine Different series aluminum door/window single molds and combined molds can be installed on the board of the punch, it can punch and process all holes and notches of aluminum alloy profiles for all kinds of relevent push-pull windows, side-hung windows and insulation windows. This machine features good stability, high speed, high efficiency, low noise, no pollution and high precision, with fast, easy, safe and reliable mold changing. It is a leading product in the country.