It's two pieces of film that didn't stick well. It's a little difficult to adjust. It doesn't blow and it has rotten bubbles. It needs master's skill

其次就是气泡膜又称气垫膜、汽珠胶，汽泡卷等等,使用低密度 防静电气泡卷聚乙烯加工而成，是当前普遍使用的一种透明软包装材料,用途广泛。其原理是以薄膜包含空气使之形成汽泡来防止产品撞击，确保产品受到震动时起到保护作用，同时亦有保温隔热的作用，适合各行各业的不同产品包装或周转之用！由于气垫膜中间层充满空气，所以体轻，富有弹性，具有隔音，防震、防磨损的性能，它防水，防潮，抗压．

The second is bubble film, also known as air cushion film, bead rubber, bubble roll, etc., which is made of low-density antistatic bubble roll polyethylene. It is a kind of transparent flexible packaging material widely used at present. The principle is that the film contains air to form bubbles to prevent the impact of the product, so as to ensure the protection of the product when it is vibrated. At the same time, it also has the function of thermal insulation, which is suitable for different product packaging or turnover in all walks of life! Because the middle layer of air cushion membrane is full of air, it is light, elastic, sound proof, shockproof and abrasion proof

汽泡袋又分单面和双面两种,单面汽泡袋适宜保护自身重量较轻的产品，双面汽泡袋防震力强适合体积较大较重之物品包装。单、双面汽泡袋均适

There are two kinds of bubble bags: one-sided and two-sided. One-sided bubble bag is suitable for protecting products with light weight. Two sided bubble bag has strong shock resistance and is suitable for packaging larger and heavier goods. Single and double side bubble bags are suitable

分全新料和回料两种，全新料的质量肯定是好些的，但是相对来说成本也会高点，如果你只是邮寄东西包装下的话，可以选择用80%左右新料的，这种材质里面只加入了20%回料，质量也是很不错的，气泡里的气很足，缓冲抗压效果也是很不错的！这样你的包装成本也降低了不少。

There are two kinds of new materials and recycled materials. The quality of the new materials is certainly better, but the cost will be higher relatively. If you just mail things for packaging, you can choose about 80% of the new materials. This kind of material only adds 20% recycled materials. The quality is also very good. There is enough air in the bubbles, and the cushioning and compression effect is also very good! In this way, your packaging cost is also reduced a lot.