1KG PVC heat shrink tubing Shrink tube1kg PVC heat shrink tubing Shrink tube a variety of specifications 18650 battery shrink sleeve Insulation casing Heat shrink Features and specifications: Product physical mechanical properties: Appearance: Smooth surface, uniform thickness, no obvious spots, no traces of oil, impurities, folding Proportion: 1. 36 Heat shrinkage: Tested at 100C, horizontal shrinkage of 48 3%, vertical 12 3% can be close to the product Shrinkable heat shrinkable machine