The preparation in the past year and a half, I finally in 2009 September by a national special inspection institute expert on comprehensive assessment, awarded by the State Quality Inspection Administration of the manufacturing industry, with the highest level of "A, B grade pressure element combination device" manufacturing license; obtain this certificate, means our company can manufacture various types of decompression pry any work pressure and any media equipment and other pressure pipe assembly products, the company products have been extended, thus greatly enhance the enterprise the competitive ability.