We are a leading company combining manufacturing and trading for series educational materials, from Biology, Chemistry to Physic.

&S is a comprehensive group combining manufacture and trade in both international and domestic market. Y&S has companies or representative offices in Beijing, Tianjin, Zhenjiang and Hangzhou. The main industrial products offered by Y&S include mechanical products, optical products, organic chemicals and light industrial products, etc. Y&S has business relations with more than 50 countries and regions all over the world and wins high reputation for its excellent product quality, abidance of its contracts and perfect after-sale-service.