FEATURES :

• Increase the stitch stroke and the lifting of the presser foot also adopt double tension to make full use of the sewing thick thread and high tension.
• Close upper feed system can protect the oil from splashing applying for sewing bags and various kinds of heavy thickness materials
• Adopt an innovative feeding device with a square shape to make good use of its benefits.
• The oil device with collect oil core deeply reduces the trivial process for oil filling (manual for hook).