Phab ntsa mounted yas txaj rau k-style handset C14

Lus piav qhia luv luv:

Lub txaj no yog tsim los rau phab ntsa mounted xov tooj thiab yuav siv tau rau nruab rau ntawm ntsug nto rau K-style handset.

Nrog cov kws tshaj lij R & D pab neeg hauv kev lag luam kev sib txuas lus tau thov rau 17 xyoo, peb tau pom tseeb ntawm txhua qhov kev thov hauv cov ntaub ntawv no thiab peb tuaj yeem muab cov kev daws teeb meem zoo tshaj plaws rau nws.