I am in Sinopec's unit, I guess this kind of big state-owned enterprises procurement process should be similar. If your product room has just been developed, there should be mature technology and authoritative recommendation, the design institute agreed to use, the competent procurement leadership approval can be. Then there is to enter the group company procurement network, all the procurement is now online ordering, in the system resource library to screen manufacturers, provide quotations, after the inquiry, negotiate the price, and ultimately order.
First of all, I declare that I do not understand the procurement process very well, this is just a generalization, just attended such meetings.