We are Qingdao Derkia Automation Technology Co.,Ltd specializing in the production and development of pressure gauges. Our pressure gauge have passed ISO9001/ISO14001/KS/CE certificate.We have exporting our pressure gauge to South Korea/Russian/Canadia/Australia/South Africa etc.Cooperative brand partner is Hatlapa, ЮМАС, Konics, HYUNDAI, SJ, Withus, YuWelco, Cretos, Sam Won, NsWel, Keyang, ThermalWeld, NetWeld, KOREANA, Kalpumps, Kegerator, Tangia, SANY, Haier, Hisense, CNPC, SINOPEC, ANSTEEL, etc.