FLANGE ORIFICE SECRETS

Based on historic texts, the inch was first acknowledged while in the 7th century as a means of examining wound depth. Its first Formal definition dates from 1324 – 3 grains of barley, dry and round, positioned stop to end, lengthwiseHistorical past/origin: The term "inch" was derived with the Latin unit "uncia" which equated to "one-twelfth" of