If vendors don't want to bid, at least in the opening 24 hours prior written notice to the buyer and will immediately return documents to the buyer's contact.
Such as suppliers do not want to bid at least 24 hours before the opening notify the buyer in writing and will be immediately returned to the buyer purchasing the relevant documents contacts.
If the supplier does not want to bid, at least in the opening 24 hours before the written notice to the Buyer immediately and submit relevant documents to buyer's contact.