Yes, I agree that all producer goods are not capital goods, because producer goods includes:
(i) Goods which are used as raw material like wood, used to make furniture.
(ii) Goods which are used as fixed assets like plant and machinery.
Capital goods include only fixed assets of the producers. These are durable goods. On the other hand, goods used as raw material are not capital goods as these are not repeatedly used in the process of production. Thus, all producers goods are not capital goods.