91亚洲欧美强伦三区,国产精品麻豆成人AV电影艾秋,久草精品视频在线开放,久久久国产精品可乐操,五月婷婷中文字幕在线,精品丰满熟女一区二区三区蜜桃,福利姬3d全彩办公室色欲,欧美日韩国产人与动物,蜜桃av在线国产精品

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)。