Quality Management

JGZOE ah, tthatnak cu tahfung lawng si loin biakamnak zong a si. A ttha ngaimi optical le laser thilri hna nih a fekmi tthatnak zohkhenhnak le pehzulh tein tthanchonak cung ah dirhmi a si lawngah kan riantuanpi hawi hna zumhnak an hmuh khawh ti kha kan hngalh. Kan thilchuak dihlak...