Modele
GWZ1000 GW/GZ 1” 100 mm
GWZ1020 GW/GZ 1” 200 mm
GWZ1030 GW/GZ 1½” 100 mm
GWZ1040 GW/GZ 1½” 200 mm
GWZ1050 GW/GZ 2” 100 mm
GWZ1060 GW/GZ 2” 200 mm
GWZ1070 GW/GZ 2½” 100 mm
GWZ1080 GW/GZ 2½” 200 mm
GWZ1090 GW/GZ 3” 200 mm
GWZ1100 GW/GZ 4” 200 mm