What is the best specification for Alu - Alu packaging materials? And what is the best converting line ?

Strange question, without knowing what the product being packaged is, you can easily suggest the wrong packaging. 

For example, SRC packaging, can use, paper, plastic or foil base material. The aluminium alloys used are higher strength and formability alloys. However if using low gauge aluminium for converter packaging, e.g. dairly, confectionery or tabacco. These same alloys would not be used due to the difficulties and extra expense of rolling to the ligght gauges required.

If you want to succeed you have to work hard. Hard working should be your first priority and if you combine both hard work and smart work you will be outstanding then. :)