\nPHY-00363 \nOptically worked grounded edges. \n \nPHY-00363/1 50 mm Dia. F.L. 50 mm \n \nPHY-00363/2 50 mm Dia. F.L. 100 mm \n \nPHY-00363/3 50 mm Dia. F.L. 150, 200, 250 , 300 ,500 & 1000 mm \n \n