All the shops. According to the public information of Jiutianjia official website, China Merchants Bank's credit card can be used in all stores on Xi 'an of Jiutianjia. Jiutianjia is one of the catering brands under Bole Ma Qianli Group. Jiutianjia, founded on 20 15, is a national barbecue chain enterprise adhering to the business philosophy of "extreme productism" and absorbing traditional barbecue techniques and characteristics. Jiutianjia is a high-end Korean restaurant mainly engaged in fruit and wood barbecue and cooking. It absorbs the essence of Japanese and beef teppanyaki and Korean barbecue, and combines the special effect of fruit-wood barbecue to roast the delicious and tender meat of Australian black cattle to the fullest.