国产精品成人av免费-一区二区亚洲视频在线-国产又粗又猛又爽又黄的国-黄色无毒免费av网站-国产精品美女无遮挡一区二区-国产美女高潮流白浆免费观看-欧美精品在线观看一区二区-少妇高潮喷水高清av-白丝国产一区二区三区

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，其柱塞配料口正好與管線內(nèi)表面相匹配，這樣不會干擾線里熔體的流動。