Ningbo Yinzhou Junhang Trade Co., Ltd. who specialized in research&innovation on home improvement products. Founded in April 2008 and formally incorporated, the company is located in Ningbo Yinzhou investment business park. We have registered the Rottweiler & ROLLINGDOG two professional brands in many countries,and we keep launching patented products every year. ROLLINGDOG series high-end products which completely independent design and development by our R&D team, through the efforts of the whole team,we now have a abundant product line and have established long-teams business with some famouse DIY retailers . Our mission :To produce unique and innovative products that make your painting easier, enjoyable, and more effective .Establish their own well-known brands and become the industry leader