A bubble bag manufacturing apparatus is provided. The bubble bag manufacturing apparatus includes a manufacturing apparatus body and a wireless module. The manufacturing apparatus body is configured to perform a machining process on a bubble bag film roll, so as to manufacture a bubble bag. The bubble bag film roll comprises a machine readable medium. The wireless module is disposed to the manufacturing apparatus body, and configured to receive a production information of the bubble bag from an electronic apparatus. The electronic apparatus scans the machine readable medium to obtain the production information, and transmits the production information to the manufacturing apparatus body by wireless transmission.

The manufacturing apparatus body determines a production parameter of the bubble bag according to the production information, and manufactures the bubble bag according to the production parameter. In addition, a bubble bag manufacturing method is also provided.

Disclosed are multilayer films with high toughness performance, where the films have an elastic ethylene copolymer in the core layer.

A compression apparatus (10) for compressing a tubular structure (12) to be formed into a hollow structure (20) such as a pipe comprises contact elements (60) arranged in two sets, (61, 62). The contact elements (60) are adapted to move along a compression section (41) in a coordinated sequence, whereby a portion (12a) of the tubular structure (12) within the compression section (41) is compressed between pairs (63) of opposed contact elements. The apparatus (10) includes registration means (110) for causing respective pairs (63) of opposed contact elements (60) to be maintained in registration with each other while moving along the compression section (41).