Siab Foob Qhov Rooj Valve

NSV cam khwb cia steel rooj vag li qub tau siv dav hauv kev lag luam roj, tshuaj, tshuaj, tshuaj, chiv, hluav taws xob, thiab lwm yam raws li kev qhib / tawm tswj li qub kom dhau los yog txiav tawm qhov nruab nrab.Lub rooj vag yog tsim los ua ib lub rooj vag hloov tau yooj yim ntawm kev foob yooj yim thiab hnav cov nyiaj them poob haujlwm, lub foob nto yog overlaid nrog hnav resistant hardened alloy;