STEEL PIPE FOR DUMMIES

In keeping with historic texts, the inch was very first regarded in the 7th century as a way of examining wound depth. Its 1st official definition dates from 1324 – a few grains of barley, dry and round, placed close to end, lengthwiseBackground/origin: The term "inch" was derived within the Latin unit "uncia" which equated to "one-twelfth" of a