Cia peb tham me ntsis txog razor hniav durability. Ntau yam hauv kev tsim khoom txiav txim siab qhov ntev ntawm cov hniav, xws li hom steel sawb, kev kho cua sov, kev sib tsoo lub kaum sab xis, hom kev sib tsoo log siv hauv kev sib tsoo, txheej txheej ntawm ntug, thiab lwm yam. Qee cov hniav tuaj yeem muab ib qho bett ...
Nyeem ntxiv