A级国产乱理伦片在线观看_欧美三级欧美成人高清_av天堂午夜精品一区二区三区_老赵抱着月月在厨房做欧美

HF滑閥是(shi)我廠(chang)吸收國(guo)內處先進結構和(he)工(gong)藝，而進行設計改進的一(yi)種(zhong)給排水(shui)(shui)(shui)(shui)(shui)及污(wu)水(shui)(shui)(shui)(shui)(shui)處理的理想(xiang)設備。廣泛應用(yong)(yong)于市政、石油、化工(gong)、電站、 冶金、輕(qing)工(gong)、食品、制藥、水(shui)(shui)(shui)(shui)(shui)利(li)、污(wu)水(shui)(shui)(shui)(shui)(shui)處理等給排水(shui)(shui)(shui)(shui)(shui)工(gong)程中，安裝于各種(zhong)水(shui)(shui)(shui)(shui)(shui)池(chi)(chi)或(huo)水(shui)(shui)(shui)(shui)(shui)井的管道(dao)上。對公稱壓(ya)力為0.1Mpa、以下(xia)的用(yong)(yong)在(zai)管道(dao)口和(he)交匯窖(jiao)井、泥沙池(chi)(chi)、污(wu)水(shui)(shui)(shui)(shui)(shui)渠(qu)道(dao)、原站井水(shui)(shui)(shui)(shui)(shui)口，清水(shui)(shui)(shui)(shui)(shui)池(chi)(chi)等地方，用(yong)(yong)以截止(zhi)疏通水(shui)(shui)(shui)(shui)(shui)流或(huo)調(diao)節水(shui)(shui)(shui)(shui)(shui)位(wei)。手(shou)動(dong)操(cao)作，單向受壓(ya)。