Recently, Hangzhou Huahui company developed "a vertical temperature reduction system" scientific and technological achievements of the first national invention patents, "a temperature and pressure relief device" won the national utility model patents, in this warm congratulation! This is the good news of the company's scientific and technological innovation and a breakthrough of declaring national invention patent zero, laying a very good foundation for the Company to re-certify after the expiration of the high-tech (valve technology) enterprises in key national support fields in 2015. So far the company has 41 patents, of which 1 invention patents, utility model patents 20, the appearance of 20 patents.