China4us.com - B2B Global Trade Portal forUS-China trade. China4us.com is part of caravel's B2B e-commerce platform.Caravel was established in 1993 with the mission of promoting global trade. Caravel offers a broad range of products designed to help firms conduct business in the global marketplace. Caravel's goal is to establish itself as the leading information company in US-China trade as well as a popular brand name in global commerce.