We are honored that our company's three patented products have obtained the single-source procuremenIssuing time:2022-04-19 15:52 Our company's three patented products HK-1040A automatic jet fuel total acid value tester, HK-2019A automatic lubricating grease wide temperature range dropping point tester, HK-BL101 common glass measuring device verification device (volume method), obtained the procurement of military materials of single-source purchases. |