Manual packaging pallets have hidden costs, you know! ? Before the 1970s, the benefits of pallet unification had been recognized by a large part of American industry. The reduction of a large pallet load is achieved by the opportunity to significantly improve and transport damage from many small commodity productivity. It is not necessary for a long time. The most widely used material handling of the goods on the pallet is to use tensile packaging. The era is shrinkable , heat shrinkable film unitized load is in some of the first tray to complete the oven heating cover film on the load of later. But the increase in energy costs was the result of the energy crisis of the 1970s, so the cost of contracting bags has also increased. People are also looking for a more effective way to implement the same damage after compression bag costs rise, the load is unified benefit in reducing the without compression of the cost of the bag Salvation can be done in a stretch The function of stretching is to save. In the 1970s, stretched packaging was invented by P and B, eliminating these energy problems and the quality issues associated with manual packaging were the goals of stretching packaging. At this time, the main method of transporting pallet goods has been replaced by stretched packaging. Fast, efficient, cheap is his advantage, the biggest advantage is very effective at the right time. Since the first machine is p and b invented, almost meet any stretch packaging requirements, big or small, after the model evolution of various types and stretch packaging or for any application. Cost is invisible The outspread of the stretch wrap is made by machine, and stretches are carried out by hand. A person walking on a pallet is also included, at this moment the package is done with a roll of handheld stretch film. While this approach is still being used, there are many aspects of inefficiency that can’t be avoided