Hi Shikha,
As you are planning to sell your product and also create order so it should be a semi finished rather than raw materials as you need to support manufacturing of this product as well.
We had similar issue in one of our product where header material was same as component material. The only difference was that the raw material was tested first and then made ready as finished material. Although the material, physically was same. In order to segregate tested materials with non-test one, we created diff materials code. This helped us to track inventory of same material at 2 different levels. Not sure if it will serve your purpose but this is just a workaround.
Regards,
Rohit