Free-trimming thiab Free-punching
National Patent No: ZL2005 2 00192 11.6
Ib tus neeg ua haujlwm tuaj yeem ua haujlwm tsawg kawg 6 lub tshuab
Dawb Trimming thiab Pub Dawb Punching-Txog 10% cov nqi tsim khoom
Kev ua haujlwm ruaj khov, Kev tsis lees paub txog 0.2%
