chainstitch การใช้

• Like lockstitch and chainstitch, coverstitch can be formed anywhere on the material being sewn.
• The chainstitch is still used today in clothing manufacture, though due to its major drawback it is generally paired with an overlock stitch along the same seam.
• :: I managed a large clothing factory for many years and can explain in intricate and fascinating detail how a sewing machine works, whether lockstitch ( the kind the OP has ) or chainstitch-which are the 2 commonest types, but it would take too long.