أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
Waste is anything beyond your need,e.g. producing1000 of something when you only need992 or it could be anything that does not contribute to the final product
Loss is having lost some parts or amount of products due many reasons as human mistake, environment of the workplace or machine failure... it could also be due to planning