On June 20, 2017, Jiangsu torchi signed a commercial contract with CNV for the R & D, supply, installation and commissioning of cryogenic valve test device. For each core device of low temperature industry, relevant simulation test must be done before leaving the factory. Jiangsu torchi completed the R & D and supply of CNV low temperature valve test device with solid technology and R & D skills. The device was successfully put into operation in December of the same year, and was recognized and highly praised by customers.