Munich, September 15, 2017: Konstantin Urban, CEO and founder of windeln.de SE, one of the leading online retailers for baby, toddler and children's products in Europe and to customers in China, was invited to speak at Alibaba’s 18th birthday celebration in front of a large audience with nearly 40.000 guests in Hangzhou, China. The event was the biggest in Alibaba’s history and took place in the Huanglong Stadion in Alibaba’s hometown last Friday (September 8th). The audience mainly consisted of Alibaba employees from over 21 countries but also included famous Chinese singers and othe