The technical scheme should be fully disclosed in the patent specification so that those skilled in the art can reproduce the scheme. Where the raw materials used in the patent scheme are unconventional raw materials, the product number, composition, properties and other contents of the raw materials shall be stated, and the source information of the raw materials shall be provided if necessary. Otherwise, the examiner will think that the disclosure is insufficient and may reject the application.
Of course, conventional raw materials are well known in the industry and need not be described too much.