
Siv los tsim cov khoom siv zoo, ntau yam elastic lossis tsis-elastic siv, xws li ris tsho hauv qab elastic, ribbon, khau siv hauv kev lag luam khaub ncaws, laces, ribbon hauv kev lag luam khoom plig. Lub tshuab yog nrog siab .adaptability thiab siv dav hauv dav .range.NF14-25.

NF14-25. Kev ua haujlwm ceev heev, qhov ceev yog txog li 500-1500rpm, kev ua haujlwm siab, cov qoob loo siab.

NF14-25. Ib feem nrog kev tsim khoom siv tshuab, ntev .lasting durability.