Felt yog dav siv nyob rau hauv lub neej txhua hnub. Nws hom muaj xws li ntaub plaub, iav fiber ntau xav, carbon fiber xav, koob punched xav, thiab lwm yam. Nws yog siv rau hauv cov ntaub pua plag, kev txuag hluav taws xob thiab lwm yam lag luam. Lub vibrating riam xav txiav tshuab tuaj yeem siv los txiav cov khoom siv. Vibrating riam xav txiav m...
Nyeem ntxiv