There are many places to test the purchasing certificate, but the key depends on what kind of purchasing certificate it is. Now many certificates are issued by trade associations, so friends who want to test buyers should be cautious. National registered buyer, please note that it is a registered buyer. I'm from Jiangsu, so I know some purchasing certificates from Jiangsu. The best reputation is the national registered buyer of the National Vocational Qualification Certification Center. At present, only Yuan Bo Talent Training Center in Jiangsu is authorized to purchase talents from Yang Pei, so everyone must be careful. .