Established in 2002, Ningbo Yinzhou Sonjin Industrial & Trading is a large-scale enterprise and is one of the leading designers and manufacturers of roof windows and accessories in China. Our product range includes R series, RB series, RX series, RXD series, RVD series, and inside and outside blinds.

These products are widely exported to Europe, the US, Asia, the Middle East, Africa and Australia.

We are the only roof window supplier of KSO in the Asia-Pacific region. For more information on our products and services, contact us today.