China YDDHW (http://www.yddhw.com/) is a vertically oriented e-commerce website created for production enterprises, namely a one-stop supply chain service provider. The core sections of the website offer more than 50,000 kinds of goods divided into ten categories: hardware, cutting tools, valves, electronics/electrical components, plumbing/pipes, water-saving sanitary wares, industrial control, instruments, molds, and general accessories. By establishing the "green channel, sunshine procurement" service model, it truly achieves the goal of "reducing total purchasing costs for customers".