When adding a new sale order line, you can eventually select a specific Bill Of Materials.

.. figure:: ../static/description/sale_order_1.png
    :alt: Adding a specific BOM
    :width: 600 px

When confirming the sale order, if the routing is manufacturing then the production order will be using the specified Bill Of Materials.

.. figure:: ../static/description/manufacturing_order_1.png
    :alt: Manufacturing order using specific BOM defined in Sale Order Line
    :width: 600 px
