Tshwj xeeb yog siv rau regenerating lub squaring log thiab calibrating rollers, txuag nqi rau cov cuab yeej pob zeb diamond.
Segments rau calibration roller yog tsim los rau kev txiav du thiab siab tshem tawm cov khoom. Segments tau txais kev pom zoo rau lawv lub neej ua haujlwm ntev, kev siv hluav taws xob tsawg, tsis muaj suab nrov, ua haujlwm zoo thiab ua haujlwm ruaj khov.