Khoom zoo;
1)Consealed hom, yooj yim nruab nrog kawg npog phaj lossis ob sab hauv qab tis.
2)Tsim tshwj xeeb, M hom caij nplooj ntoos hlav nrog cov qauv nylon txhawb zog, kev ua haujlwm ruaj khov.
3)Nylon los yog tooj liab plunger muaj nyob ntawm tag nrho cov style ntawm lub qhov rooj.
4)Silicone roj hmab sealing, kub tsis kam, laus kuj.
5)Cov hlua hluav taws tuaj yeem muab ntxiv rau ntawm cov tis hauv qab ntawm ob sab kom ua tiav kev tiv thaiv hluav taws.