Plastic packaging refers to the use of plastic packaging, which can be selected from hard plastic packaging materials or soft plastic packaging materials according to different forms of items, such as plastic bottles for beverages, food packaging boxes or bags, and finished food packaging bags.
05
2023
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06
Analysis of the Current Situation and Prospects of the Development of Plastic Products in China
Against the backdrop of rapidly changing global economic development, the plastic products industry is rapidly developing.
05
2023
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06
Analysis of the Development Trend of Domestic Plastic Products Industry in 2023
Plastic products are widely used, and the vast downstream industry provides strong support for the development of China's plastic products industry. With the introduction of the "Detailed Plan for Revitalizing the Petrochemical Industry", China's plastic products industry is facing new development opportunities.
02
2023
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06
Plastic products are a collective term for daily and industrial products made from plastic as the main raw material through extrusion, injection molding, blow molding, rolling, lamination, and other processes. They also include products processed and reproduced from recycled waste plastic; Excluding plastic shoe manufacturing.
01
2023
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06
Common faults in hydraulic systems
在液压系统中，各被压元件都有相对运动的表面，如液压缸内表面和活塞外表面，因为要有相对运动，所以它们之间都有一定的间隙。如果间隙的一边为高压油，另一边为低压油，则高压油就会经间隙流向低压区从而造成泄漏。同时，由于液压元件密封不完善，一部分油液也会向外部泄漏。这种泄漏造成的实际流量有所减少，这就是我们所说的流量损失。
25
2022
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12
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