Greifensee, switzerland. July 28, 2011. Highquality plastic, sintered metal and diecast parts must not exhibit any cavities, but should be fully molded and complete. These parts are often subjected to repeated coating following shaping. A deviation of just 0.001 can make the difference between good and reject parts. Mettler toledo&rsquos wms weighing modules detect such deviations quickly and reliably.the highresolution wms weighing modules are designed for quick and highprecision filling and checkweighing during automated production.