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塑料薄膜包装主要有聚乙烯和聚氯乙烯两种。由于两种薄膜包装的性质不同,在使用和修补时必须将其严格区分开来。聚氯乙烯薄膜包装袋和聚乙烯薄膜包装
Plastic film packaging mainly polyethylene and polyvinyl chloride two. Due to the different nature of the two film packages, they must be strictly distinguished in their use and repair. PVC film packaging bags and polyethylene film packaging