The packaging in the cosmetic industry has gone leaps and bounds in recent years. The cosmetic industry has the most varied packaging requirements of all the other sectors. The materials used vary from different metals from glass, paper, and Plastics, and these materials are used to make containers with different shapes and sizes and dispensing mechanism.  Plastic in the form of primary containers, secondary flexible pouches, caps and closure, and the nozzle is one of the major packaging materials used by the cosmetic industry. The plastic tube is one of the major containers in the cosmetic industry as it is able to store liquid-solid and semisolid materials and able dispense products in the controlled proportions. Also, the, when compared to other containers tubes, are able to provide better contamination protection.  In order to cater to the increasing demand for tubes, various suppliers have come up with innovative offerings in the market. Most recently, Sally Hansen, a major cosmetics manufacturer in the global market, developed a squeezable tube paired with an applicator tip with the help of Topline.

以五年库存均值为基准，原油去库周期约为12个月。全球原油存在或大或小的库存周期，一个典型的库存周期约3-4年。其中去库进程可拆分为去库深度和去库速度两部分，我们发现，历史上几次去库周期的深度相差不大。而典型的去库速度为，如果以五年库存均值为基准，去库周期约12个月。

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