评估柔韧性：屈体前伸测试。
结果表明，聚丙烯与较高熔体流动速率的聚乙烯共混后，其型坯直径膨胀的变化范围较宽，垂伸较明显。
The results showed that the swelling range of parison diameter of pp blended with higher MFR PE is wider and its parison sag is more apparent.
它是一种多功能、多用途包装机型，集薄膜位伸成型、装填物料、抽真空、热封、分切等功能于一体，在一台机械设备上具备了一条包装生产线的功能。
It congregates these functions such as stretching loading materiel vacuuming hot sealing and cutting on one single machine thus it can possess the functions as a complete packing line.
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