... DUCT LINE-7GDF Flange Automatically Duct Line7 is special design for Eroupe duct flange Standard(DW-144) , it is modular design ... control,,you just need input the duct data, Production line for the satisfaction of your production of qualified duct it is ... ,Japan Mitsubishi MEIFORMER-MDL-7GDF FLANGE AUTOMATICALLY DUCT LINE 7(cutting machine)a special design for Eroupe duct flange standardard(DW-144)