Why B2B and B2C ways of Social Marketing are focus/utilized by Industrial Goods manufacturers or traders?

By addressing the B2B sector in addition to the B2C, you have contact to another new target group which enables you to pursue new sales opportunities.  A good way to attract these customers is by using a B2B shop with a public catalog, and attract even more visitors through search engines to the online store. By using  advanced cross-selling und up-selling of related or additionally useful products, you can expand the obtained revenues even farther.