General packaging materials include : 3 - side seal , center seal , side seal with gusset , center seal with gusset , tray lid , rolls , retort pouch ( this pouch may look like other regular pouches , but it actually made up of different kinds of materials which enable the pouch to be heated and sterilized ) 其它包装材料包括:三边封袋，中封袋，风琴袋，中间封风琴袋，封口膜，卷膜，蒸煮袋（袋子本身可以在蒸或煮的高温情况下使用，对内包物进行加热和杀菌） 。
While making , pack the cow head , the cow feet to go to the hair and wash clearly , chop down the small pieces to cook , after going out the pot to pick and get rid of the bone , cutting remaining cow jin into the crumb , put into basin and use to wash rice the bubble to get for 3 hours , then wash clearly with the cold water , packing the seasonings , such as hot pepper , ginger , garlic and wild pepper . etc 制作时，将牛头牛脚去毛洗净，砍成小块煮熟，出锅后剔除骨头，将剩下的牛筋切成小片，装入盆里用淘米水泡3小时捞出，再用冷水洗净，把辣椒姜蒜花椒等作料倒入盆中拌匀，装入罐中封好，半月后即可食用。
There are many adwanced eauipments , such as high - speed concave edition print , dry composite machine , cutting machine , bag making machine , treble coextrusion machine . the products touch on food . household chemical , clothes and the other areas . the products are including trilateral envelope , middle envelope , self - supporting bag , self - supporting zipper bag , convulve film and pvc thermal shrinkage label 公司目前拥有三层共挤吹膜机、高速凹版印机、干式复合机、分切机、制袋机、特殊成形等设备；产品涉及食品、日用化工、服装等各个领域，主要范围有：三边封袋、中封袋、自立袋、自立拉链袋、纸塑复合袋、卷膜、 pvc热收缩标签等。
Abstract : anchor packer is one of the important downhole tools which areused in oil production and waterflood technical operation , such as layer waterflood , layer fracture or acidation , mechanical water block . after anchor is fixed in the simulated test unit , the invasion depth of the casing can be known with the help of the sensor around the casing wall , and then the failure degree is concluded . this is very important for the anchor packer design and site operation 文摘:在油田开发中封隔器是实施机械采油、分层注水、分层压裂或酸化、机械卡堵水等注采工艺作业的主要井下工具之一，封隔器上的卡瓦是保证工作可靠性的重要元件，把卡瓦安装在模拟试验装置中，通过在套管壁周围分布位移传感器，测得卡瓦锚定后切入套管壁深度，判断卡瓦对套管的损伤程度，这对封隔器的设计和现场使用具有十分重要的意义。
