上线是普通线，下线是普通线, 追加PTV打缆装置。 可配40种花模，使线迹更加丰富多彩。打缆运动自稳健,线迹漂亮。 Normal thread in needle and looper,varied patterns could be made by 40 types of smocking cams andpin tuck device, the stitch is stableand beautiful.
