... pressure flow meter. It was widely used in fields of gas, natural gas, petroleum industry, chemical engineering, energy industry, food industry, ... T9115.1~9115.4~2000 series standard. For pipeline type, small diameter flowmeter of DN6, DN8, DN10 etc. can be ... :10>5no50~100020500straighttubelightlowlongultrasonicFor largeflow 1:50yes50~5000straighttubelightLow long extreme small flow gas flow meter