Svar: Steel, Cast Aluminum and Thermoplastic. Here is the full range of Bernstein’s products at INKOM. Did you find the answer? Contact me if you have any further questions! Jonas Falconer +46 (0)8-514 844 03jonas.falconer@inkom.se Agneta Johansson +46 (0)8-514 844 00agneta.johansson@inkom.se