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propylene is not solid, the molecular chains can easily be broken, which can effectively degrade and enter the next cycle in the form of a non-toxic environment, and a non-woven shopping bags in 90 days can be completely decomposed. And woven shopping bags can be reused more than 10 times, after discarding the degree of contamination of the environment and only 10 percent of plastic bags. 

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Title: Ultrasonic non-woven bag of _yuqiang5081_yuqiang5081 of ultrasonic parameters 

Content: Ultrasonic non-woven bag of ultrasonic parameters [original 2014-1-22 15:35:50] Font Size: medium and small two main parameters of ultrasonic non-woven bag of ultrasonic ultrasonic parameters: the frequency: F≥20KHz (in practice a similar effect as the application, usually also referred to as the ultrasonic sound waves F≥15K); power density: p = the transmission power (W) / emitter area (cm2); usually p≥0.3w / cm2; ultrasonic wave propagating in the liquid the surface of the dirt can be cleaned, and its principle can be