... etc. SPECIAL FEATURES AND APPLICATIONS: 1.This machine designed with the lastest zigzag movement structure, ... lubrication system, which can promise a long machine life & less mainteinace charge.3. Operate ... changing, prolong life of hook.5. This machine can sewing more than 55cm materials.Applications1. ... rhythm clothes, sport tools, cap rings etc.2. Machine with three & four dots can ensure a more ...