Hluav Taws Kub Ntaus Grooved Npauj Npaim Valve

Cov lus piav qhia luv luv:

Peb cov hluav taws sib ntaus sib ntaus grooved Npauj Npaim Valve yog tsim los muab kev txhim khu kev qha thiab txuag hluav taws kub. Nrog nws cov grooved xaus, nws muaj cov kev teeb tsa yooj yim thiab txij nkawm. Lub valve no yog crafted los ntawm cov ntaub ntawv zoo, kom muaj kev ruaj khov thiab ntev.