For us at Carl Wilhelm Cleff, system delivery does not just mean the separate development and production of vehicle windows and doors, but on request, it is also the meaningful and efficient supplementing of these products with important components, such as frames, complex sealing, hinge and locking systems. With the help of many years of experience and development expertise, we offer our customers a system solution tailored to the overall construction - with all logistically relevant requirements that need to be addressed in this context.