YUNG CHAN ELECTRICAL INSTRUMENT CO. , LTD. Was established in 1991. We have more than 14 years of experiences in manufacturing and designing diversity of thermocouple heads, terminal blocks and connectors. Our R& D group has developed some new material in manufacturing and company turnover is growing every year. We are very proud to say that we are the leader in this field in Taiwan. However, we are not satisfied with it. It is now YUNG CHAN aim to become the leader brand in the world.