Under low tension, the film can recover and bounce back, but it is impossible to stretch under high pressure. In the case of low tension extrusive film may be empty bottles of PT on packing is also very good, in the case of light weight, it is easy to broken, but in the whole process of packaging cycle, most of the load can achieve its purpose, better play a role. By applying the appropriate tension to the various points of the load, manufacturers can reduce the cost of the film and reduce the damage of the product. In contrast to the single-digit fastness, this difference is that the extra load is controlled by the variable tension control. Add tension to the position of a strong box and a lighter tension. The reduced force is beneficial (sharp Angle, opening of the top of the box). With changing primary packaging design, this is very important, also is to have a provides flexibility and variability of the system to optimize stretch packaging function, for example, variable tension control their octopus machine not only provided by the M, but the Oct system can be combined with (can be highlighted below), loading package and rapid recognition also can be finished by them, it need to make some appropriate changes. The movie interrupt is eliminated by variable set control, and it achieves its purpose by means of load configuration and control requirements, such as optimizing Settings to reduce usage. Film types, load sizes, or pre-stretching requirements are constantly changing, and wireless capabilities and monitoring systems are being further tweaked to new Settings. Components and maintenance are minimized, and additional cost savings are realized by wireless control.