Spinnerij De Wijs BV - Manufacturers of semi worsted carpet yarns, from wool, synthetic fibers and blends. - http://www.spinnerij-de-wijs.nl/
Lankhorst Indutech - Manufacturers of industrial yarns and sewing threads, from natural, man-made and high-performance fibers. Also, tapes, braided products, composite materials, and fibers for cement reinforcement. Detailed product catalog, with technical information. - http://www.lankhorst-indutech.nl/default.html