The Xinsanxing was founded in 1988, the predecessor of zhejiang xing sanxing hardware co., LTD., registered capital of 57.8 million yuan, focus on curtain wall, Windows and doors, door control hardware supporting research and development production and related technical services, layout the future intelligent doors and Windows technology and products at the same time, the depth to explore the development trend of doors and Windows in the future, the build quality of living space. Xingsanxing cloud Technology Co., Ltd was founded in 1988,formerly known as Zheji...