Buddhismand Indian philosophy and art also came to China by way of the Western Regions. In turn, the Western Regions came to know such Han handicrafts as silk, lacquer ware,jadecarvings and copper utensils along with the techniques of raising silkworm, sinking wells, and smelting iron. This kind of exchange greatly enriched the material and cultural life of the various nationalities involved. In order to promote commerce and friendly relations with the countries in the Western Regions and Central Asia, the Han court set up many check-points along this trade route, which was protected by Han garrisons. Envoys and merchants traveling on theSilk Roadwere provided with all kinds of conveniences.
Following the opening of this route to the Western Regions, traffic between China and other countries in Silk Road witnessed a big increase. Hence the name "Silk Road" was used. But the route also served as link for friendly contacts between China and other countries in the promotion of economic and cultural exchange.