1.Our History Hangzhou Guanqiong (Kinzip) Building Materials Co., Ltd. is located in the Chinese steel town - Xiaoshan District of Hangzhou,Website:http://www.cnkinzip.com, which is a metal enclosure system supplier of roof, wall and floor, to be focused on R & D, design, manufacture, measurement, site installation, after sales service, project consulting and management. Kinzip provides technical services and high-quality products to many domestic landmark buildings.