上海閥(fa)(fa)盛(sheng)閥(fa)(fa)門制造有限(xian)公司主要(yao)生產直(zhi)(zhi)通(tong)(tong)(tong)雙向(xiang)(xiang)球(qiu)(qiu)閥(fa)(fa)，可(ke)提(ti)供(gong)直(zhi)(zhi)通(tong)(tong)(tong)雙向(xiang)(xiang)球(qiu)(qiu)閥(fa)(fa)價(jia)格，直(zhi)(zhi)通(tong)(tong)(tong)雙向(xiang)(xiang)球(qiu)(qiu)閥(fa)(fa)說(shuo)明書，直(zhi)(zhi)通(tong)(tong)(tong)雙向(xiang)(xiang)球(qiu)(qiu)閥(fa)(fa)實物(wu)圖，直(zhi)(zhi)通(tong)(tong)(tong)雙向(xiang)(xiang)球(qiu)(qiu)閥(fa)(fa)結構圖，直(zhi)(zhi)通(tong)(tong)(tong)雙向(xiang)(xiang)球(qiu)(qiu)閥(fa)(fa)外形尺寸(cun)，直(zhi)(zhi)通(tong)(tong)(tong)雙向(xiang)(xiang)球(qiu)(qiu)閥(fa)(fa)執(zhi)行標準，直(zhi)(zhi)通(tong)(tong)(tong)雙向(xiang)(xiang)球(qiu)(qiu)閥(fa)(fa)工作原理，直(zhi)(zhi)通(tong)(tong)(tong)雙向(xiang)(xiang)球(qiu)(qiu)閥(fa)(fa)作用特點。

直(zhi)通雙向球(qiu)閥(fa)技術(shu)說(shuo)明(ming)：