... patent certificate portable acrylic flow metermaterial1.flow meter,which is made of acrylic2.meter flow,fitting material is ABS(General Configuration ... &DimensionThe materials of panel flow meterRemarks1.LZM-Z series flow meter accuracy grade is ±4%2. Screw of fitting can ... .easy mounting ,low weight,long life span2.machined acrylic meter body,highly polished to a clear finish,good pellucidity 3 ...