Since 2011, I have been working in five companies, which can be divided into 2 industries: supply chain and pump industry. In each company I've got different expertises: -Freight forwarding: know the freight forwarder market of China. I can help the company reduce the shipping freight, avoid some pitfalls, make the logistic process fluent. -Pump casting: understand the casting procedure of alloy steel, cast iron, and ductile iron. -Web design and SEO: I'm in charge of the web design and SEO on alibaba.com in 2014-2016. I spent enormous times on lynda.com learning marketing, web design, HTML, Python, SEO, graphic design. But frankly speaking, learn more, know little. -Pumps: I had worked in centrifugal pumps, sewage pumps, and chemical pumps. I'd like to share my experience with people, I highly value the mutual benefit with coworkers, peers, and customers.