Cut off a line of PA-PE to make airbags between two sealing lines.
Mark the points to be heat sealed. The rules can be detailed in here.
After finishing all the marks, draw a solid line at the position to seal the whole airbag.
Cut at the point 5mm outside from that solid line.
Thus, we get a marked line to make airbags.
Silicone tubes inside
Firstly, get 8 silicone tubes, 4.5 mm each: directly cut off those bits at the length of 4.5 mm,
Similarly, prepare 7 tubes of 9.5 mm in the same way.
