Screwed wooden frames manufactured from beech in 8 mm width, with inner and outer parts polished after grinding.
CODE: THICKNESS: DIAMETER (Ø) INCH ( “ ) 100-1 8 mm 100 mm 3.93” 100-2 8 mm 130 mm 5.11” 100-3 8 mm 160 mm 6.29” 100-4 8 mm 190 mm 7.48” 100-5 8 mm 220 mm 8.66” 100-6 8 mm 250 mm 9.84” 100-7 8 mm 280 mm 11.02” 100-8 8 mm 310 mm 12.20”