Hi my dear friend khalil and have a nice day every day..first i want to give a lot of thanks for your good question about duplication.
what is a true duplication?..ans. is A True Duplication is some type of skill`s, goal, and knowledge transfer in to other..with some special practice or work. in SFI it is a good way to follow some kind of skill, work, knowledge, and goal`s. it`s so simple
