As for the purchaser, the most concerned issues raised by the supplier include the following aspects: First, product quality,which is the main concern of the purchaser. Second, the product price, is not the best cost-effective product. Third, the delivery date. Fourth, the product after-sales service, if the product in the use of quality problems, what kind of after-sales service suppliers can provide. Fifth, the technical and intellectual support that can be provided. Sixth, distribution services. Only when these problems are solved can you reassure and satisfy the purchaser.