Three Friends Trade Co., Ltd., Zhengzhou, was established in 2004, is a professional Ricoh, Kyocera, and Ricoh copiers, Ye Jishi in one machine sales and maintenance company.

• 郑州三友贸易有限公司成立于2004年，是一家专业从事理光、京瓷复印机及理光、基士得耶一体机销售与维修的公司。