... meter 5.design&utility patent certificate Acrylic flow measurementmaterial1.flow measurement,which is made of acrylic2.flow meter,fitting material is ... rubber5.flowmeter,guide rod is S.S304/3166.flow measurement,fixed screw material is brass(M6*11)7.flow ... .operation stability and safety reliable, easy maintenance YuYao ShunHuan instrument.Co,Ltd provide customers the best products and services:1 ...