手(shou)動耐(nai)磨陶(tao)瓷刀閘(zha)閥PZ73TC 用于(yu)電(dian)廠、鑛(kuang)山(shan)、造(zao)紙、冶(ye)金(jin)、化工(gong)等各(ge)類有磨損(sun)、腐(fu)蝕(shi)性(xing)漿(jiang)液(ye)及(ji)顆粒筦(guan)路作(zuo)啟閉(bi)或(huo)調(diao)節流量(liang)之用(yong)。上海(hai)富功(gong)閥門(men)科(ke)技(ji)有(you)限(xian)公(gong)司 質(zhi)量(liang)保證(zheng) * 放心(xin)選購(gou)