When bidding, a company with excellent strength in all aspects will be selected to win the bid, that is to say, only one company will be selected, and only the company ranked first will be selected, that is to say, companies ranked outside the first will not be considered, so the third place will not be won.

When inviting tenders, we should not only devote all our energy, but also pay attention to never making mistakes. Once mistakes are made, the bids will be lost directly, resulting in new white fees.