Direct sale. Rui Niweier was registered and established on the China Trademark Online by Tianjin Kangting Bioengineering Co., Ltd. on May 14, 2008. It adopts a direct sales method on Taobao, and there is no middleman to make the difference, resulting in cheap prices. Taobao is the largest online retail and business district in the Asia-Pacific region. It was founded by Alibaba Group in May 2003 and is a popular online shopping and retail platform in China.