C519 Yongen's again

I said, "I am not trying to praise our Keigel Company, but the quality of your Yongen is not good enough. Our Huping City's Jingyu Company has used your products, Jingyu Company's Vice President is my friend, he said that he regrets having used your products, so the quality is not good! I suspect that you have sold the refurbished products to them, Jing Yu! He also said that if he knew of this