Lanzhou diamond Co. Ltd.   

                                  Lanzhou City Diamond limited liability company is located in Gansu province Lanzhou city Qingyang Road No. 277, is a collection research and development, production, sales and service enterprise as a whole, the company adhering to the "honest and trustworthy," by the people and the operating principle, adhere to the "principle of dedication win-win cooperation" for the domestic and international customer service, create brilliance. Welcome all the friends come to visit, investigate and negotiate business.