Mechanical Lock

The company has been managed for six generations by the family members and offspring of the founder and namesake Wilhelm Karrenberg. In 1989, following the sudden death of his father-in-law, Friedrich Karrenberg, Wolfgang K. Schlieper was appointed as the managing partner. His son, Robert Schlieper, carries on the family tradition …Read More »

TESA is the leading Spanish manufacturer and supplier of locking solutions and access control technology for the residential and institutional markets. TESA has a wide and complete range of products including panic exit devices, cylinders, security locks, knobs and handles, door closers, access control solutions with electronic cylinders, electromechanical and …Read More »

Establish as a professional stainless steel architecture hardware manufacturing enterprise, CALFIS is engaged in advanced technology innovation and application in production. With good teams of talents in management and marketing of domestic hardware line, we can oer the innovative one-stop service system covering designing, developing, manufacturing, testing and marketing. Moreover, …Read More »