The innovative window fitting system heroal WF EM offers a substantial additional economic benefit for fabricators, as its fabrication has become easier and more efficient, and its ordering process more simplified. Thanks to the sophisticated design, working steps have been eliminated, for example cutting to length and punching. Combined with the high degree of prefabrication, this results in significant advantages in manufacture. The fitting system is designed for a variety of applications and combines maximum functionality with a wide range of design options. Even with slim face widths, heroal WF EM fittings achieve burglary resistance including resistance class RC 3. Thanks to versatile design options, fabricators can respond flexibly to individual design requirements. All visible fitting components are available in more than 500 RAL standard colours.