News and events ITMA 2023 08 June 2023 – 14 June 2023Hall 1, Booth 108Milan, Italy Upgrades for Amsler STG4000/5000 control units. Pinter Group is now offering the complete replacement of the STG4000 and STG5000 control units with the Pinter Group electrical cabinet, including servomotors, drivers, UPS, Serpico CPU board and 7’’ color Touch Screen. Pearl Yarn The Pearl Yarn is obtained by wrapping a yarn or a filament around a strand of fibers, directly on the ring frame.