Our company specializes in the general manometer, the vacuum form of the pressure, the tire examines the form of pressing, the manometer of electric contact, is able to bear shaking forms , the cold matchmaker&＃039;s form of freon, high-temperature manometer, and develop toward automobile instrument , relief pressure valve , ***** products export to such countries as America and Europe , Southeast Asia , etc. mostly, and has made unanimous favorable comment of every customer