Because of the different packaging and different requirements for bundling, the form of bundling is varied. The usual forms of strapping include single, double, cross, well and multi intersection. Its main functions are as follows:
A) Protection function: it can tie the package tightly, fasten and compress, increase the strength of the outer package, reduce the loss caused by bulk;
B) convenience: it can improve the efficiency of loading and unloading, save transportation time, space and transportation cost.