Criteria for qualified suppliers! 1。 The enterprise is legal! 2。 Can provide the certification of related products that the company needs! 3。 Punctuality: that is, delivery on time, without delay! 4。 Quality: The quality meets the qualification requirements. Reasonable price: good quality and low price, the same product, more favorable than the market price! 6。 Happy cooperation! Have perfect after-sales service, and can actively cooperate with the reasonable requirements of our company! 7。