92看片 I 亚洲精品国产精品国自产在线 I 国产精品永久免费 I 成人av在线电影 I 你懂的在线观看视频 I 成人啪啪 I 亚洲视频网站在线观看 I 超碰男人 I 黑人大群体交免费视频 I 美女一区二区视频 I 蜜桃成人在线视频 I 人人舔人人爽 I 曰本丰满熟妇xxxx性 I 精品深夜av无码一区二区老年 I 深夜视频在线免费观看 I 男女性高潮免费网站 I 久久影视大全 I 深夜亚洲 I 爱的色放 韩国 I 国产porn在线 I 黄页在线观看免费 I 亚洲永久无码精品一区二区 I 51色欧美片视频在线观看 I 蜜臀国产一区 I 国模私拍gogo I 久久精品这里都是精品 I 亚洲午夜羞羞片 I 国产乱妇乱子在线视频

A method of shrinkage efficiency of shrinkage film

• Clicks：4157
• 2018/4/25 13:05:58
• Industry dynamics

POF shrink film is also a class of many packaging films, whether it is the product of packaging rules or irregular products, can use shrinkage film, how to improve the shrinkage effect of POF shrinkage film? POF shrink film manufacturers to share with you.
First: in the use of POF shrinkage film, see the surface of the lower contraction membrane has a thorn hole, we must know that the surface of the contraction membrane must stab some small holes, so that in the contraction of the gas can be emitted through a small hole.
Second: also look at the quality of the POF shrinkage film, we choose shrinkage film in the choice of good quality shrinkage film, so that in the time of shrinkage to meet the requirements of shrinkage.
Third: again is to see whether the temperature is suitable, POF shrinkable film manufacturers prompt everyone to shrink in the shrinkage to reach a certain temperature to be able, so to see the temperature is not to meet the requirements.
How to improve the shrinkage effect of POF shrinkage film, we can try the above three methods, we POF shrinkable film manufacturers produced contract film quality qualified, reasonable price, large quantity, welcome to buy.