The heat exchanger supporting the Italian liquid project was delivered on November 24, 2014. The project was produced under the supervision of the Italian side on site. Helium test was completed in all 20 groups of channels, of which the first group reached 1.5× 10-9PAM3 /S and the rest reached 1.0× 10-11PAM3 /S and above. The highest reaches 1.0× 10-12PAM3 /S, which is praised by customers as the current international leading level.