Refer to the operation procedures to raw materials. Materials and supplies that are needed with the source, quantity, price, duration and delivered at the correct places.
Refers to the implementation of the various steps in order to obtain material. Materials and supplies needed. The price of the property at the time of sale and delivery at the correct place.
Mean, the implementation of the various steps to get the raw material. Materials and supplies needed by qualified, quantity, price, time, แหล่งขาย and delivering at the correct place.