1. Through shaft:Lighter torque, faster response.
2. Optimization of fabric feeding structure:Synchronous fabric feeding of lower feed-dog, strong fabric-fitting and smoother feeding, avoiding misalignment.
3. High quality components:The needle bar and the upper looper needleslide bar are diamond-blackened, which isdurable and can sew thicker material.
4. Upper differential adjustment:Differential adjustment rocker, adding up and down adjustment screws, More convenient,simple and practical.
Parameters