日韩亚洲一区中文字幕在线,黄色视频免费观看网站,9191精品国产免费久久,欧美日韩三四级视频在线观看,亚洲国产成人久久综合碰,国产午夜av毛片久久,真人抽搐一进一出gif免费木瓜视频

Application: used to extract the high-temperature/pressure (or vacuum) melt flow or polymer from pipeline and cut it directly. When the valve is shut off,the feeding mouth of plunger matches up with the internal wall of pipeline and provides no disturbance to the meld flow inside the pipeline. 適應(yīng)范圍：用于高溫高壓（或全真空）熔體流或聚合物從管線中直接提取出來及切斷，當(dāng)閥門關(guān)閉時(shí)，其柱塞配料口正好與管線內(nèi)表面相匹配，這樣不會(huì)干擾線里熔體的流動(dòng)。