أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
There are many charactristic for operation like Communicating,Creating,following it and Fulfilling it, like input process materials,customers,staffs, the first most is to do it not as a part of work,but heartfully in action and full concentration and satisfaction, should have the fire in mind to work.
