口袋选用双线规划，附近双线缝纫，走线均匀。
Pocket use of double - line planning, near double - line sewing, take the line evenly.
适用于薄料、中厚度料的双线锁式线缝缝纫。
It is suitable for double thread lockstitch sewing of light or medium weight material.
双线链式线迹工业缝纫机，该机具有体积小、转速高、耗能少、噪音低、维修方便等优点。
Double chain stitch industrial sewing machine, the machine has the advantages of small volume, high speed, low energy consumption, low noise, convenient repair.
钉纽扣缝纫机类型钉纽扣缝纫机可分为单线链式线迹和双线锁式线迹的两类。
Buttoning a sewing machine type buttoning a sewing machine can be divided into single thread chain line mark and double-thread lockstitch of two kinds.
钉纽扣缝纫机类型钉纽扣缝纫机可分为单线链式线迹和双线锁式线迹的两类。
Buttoning a sewing machine type buttoning a sewing machine can be divided into single thread chain line mark and double-thread lockstitch of two kinds.
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