Foreign trade inquiry, how should I answer these questions asked by foreigners?

In this foreign trade inquiry, customers mentioned that quality and delivery are very important to them; Why is it important? First of all, you should know the size of the client company. The bigger the company, the more important it is to be honest and deliver goods on time. Because once they can't provide it to customers on time, the subsequent losses may be very huge; Quality is what most customers care about and want to ensure, and then the word delivery is put forward emphatically. It may be that the defects of customers' previous suppliers in on-time delivery and quality have brought them inevitable losses, so they should consider changing suppliers; You can prove in these two aspects, so that customers can trust you, then you can arouse customers' interest and have a deep conversation with you; If your reply focuses on explaining the price, quantity and freight; Then the effect is not so ideal.