在GLK-1900c的基础上增加以下功能：

合理增加中压脚机构，在缝制中不会出现跳针现象，减少在缝制各种花型中换压脚的麻烦。
Add appropriate structure to the middle presser avoiding needle jumping as well as the trouble to chang presser during sewing different kinds of patterns.

在Y向30mm，X向50mm范围内从控制面板随意编制各种花样。适用于制衣、制鞋、制袋、手机套等厂家的小花型制作。
Edit different patterns through the control panel at the extent of 30mm in Y-axis and 50mm in X-axis.Especially useful for small pattern making