GRAF Industries Inc, located in Ontario, Canada, is the subsidiary of Italian multi-business company GRAF industries S.p.A. Our portfolio includes the products of GRAF Synergy: the world leader in advanced technology for the production and processing of PVC windows and doors. GRAF Synergy created the V-Perfect: the world’s first and unique technology that enables manufacturing aesthetically perfect PVC windows "without cleaning" which, by eliminating completely the welding seam, has revolutionized the PVC windows and doors market. There’s no need to remove any welding seam from the welded corners.