Advantages: purely handmade, exquisite and beautiful, smooth and durable.
Disadvantages: not neat enough, high cost, long production cycle.
Manual curling is to roll up the edges and use dark lines to trace the lines, so almost no traces can be seen, which does not affect the elegantness of the silk material.
Advantages: neat stitches, low cost and fast shipping.
Disadvantages: You can see the obvious machine routing, relatively stiff, not beautiful enough.
Machine straight needle crimping
Machine triangle needle curling