Capillary diaphragm seal pressure gauge -petroleum, alkali making, chemical fiber,dyestuffs, pharmacy,foodstuffs,dairying Capillary diaphragm seal pressure gaugeApplications:Capillary diaphragm ... during the production in petrochemical industry, alkali making, chemical fiber, dyestuffs chemistry, pharmaceutical industry, foodstuffs and dairying. In order to make ...