What is the real traditional suit customization?

Traditional suit customization costs a lot at first, especially in terms of service:

Cut clothes/coats/clothes/skirts according to the drawing ―― as the case may be.

Hand-sewn (almost none of them are hand-sewn now, almost all of them are semi-hand-sewn)

Imported fabrics (ordinary fabrics are not in the same grade at all)

Detail technology (beyond the reach of machines)

Please understand!