difference betwen a b2c and b2b supply chain

Answer 1

B2B refers to the Business to Business, the business (refers to enterprises) to-business e-commerce. Sometimes write B to B, but in order to easily and simply used the homonym B2B (2 is to also).
B2B Bussiness-to-Bussiness is short, that is, inter-enterprise business.eg:http://www.seekvalve.com

Is a model of B2C e-commerce is Business-to-Consumer, the consumer business, which is often said that retail sales, direct sales of products and services for consumers.eg:http://www.amazon.cn/