Beijing Trans-century Hongyu Waterproof Material Co., Ltd.
Beijing Shenzhou Hongyu Waterproof Material Co., Ltd.
Tel：86-10-62841118 　Fax：010-62913596 　
Contact：Miss Yuan Mr. Sun 　
E-mail:sun@bjszhy.com
Address: Qinghe Town, Haidian District, Beijing traffic circle north of the small business 200 meters (high-speed roadchangxiWest)