Beijng RongKaiRuiSheng Technology Co., LTD. Is a new business model of the instrument of surveying and mapping industry science and technology enterprises .The company’s main business is GPS, Total station theodolite, level,product,beacon,antenna,hand thin,radio.marine surveying instrument and the related accessories sales of such equipment. At present with Trimbie, Leica ,Topcon ,Sokkia ,Ashtech ,Nikon ,South ,Establish a good rel ationship .With the efforts of all colleagues of the company ,the company has become a leader in the field of surveying and mapping inst ruments maintenance and parts manufacturing .