| 摘要 |
Shoe boots each includes a lower waterproof foot piece and an upper sleeve connected on top of the waterproof foot piece. The waterproof foot piece is made by two identical side pieces. Each of the side pieces has an outer paper fabric layer and an inner coating layer which is a layer of PE material coated on an inner side of the outer paper fabric layer, so as to protect all chemical, water, blood, or other liquid to penetrate through the side piece. Moreover, the two identical sidepieces are connected to form the foot piece by ultrasonic welding to ensure waterproof ability.
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