Duration: Lub sij hawm spindle lub neej yog 20000 teev (2years), txhua feem ntawm cov cuab yeej yog tsim los ntawm peb lub Hoobkas, txawm tias koj siv qhov no rau tsib xyoos, peb tuaj yeem pab koj kho nws.
Nqe: Cov cuab yeej ntse heev, milling cuab yeej saib xyuas lub neej, tsis muaj kev puas tsuaj rau koj daim duab (crown), txuag ntau cov cuab yeej milling thiab cov khoom siv. ntaus ntawv yog compact heev thiab huab cua dawb xwb 40kg, pab koj txuag lub freight.
Qhov tseeb: ntug thickness tsuas yog 0.02 hli