1．CUTTING KNIFE AITACHMENT DESIGNED BY ROLLER BEARING SYSTEM THUS THE CUTTING WILL BE MORE POWERFUL&STABLY. 
2．AUTOMATIC FOOT LIFTER GAP IS 12CM.EVEN THE HEAVY THICKNESS FABRIC IS ALSO ABLE TO HIGH LY QUALITY STITCHING. 
3．SPECAIL FOR THE KNITTING FABRIC.SO THE KNITTING FABRIC WILL BE ALSO HIGHLY QUALITY STITCHING. 
4．DESIGNED BY AUTOMATIC OIL SUPPLYING&TIMING BELT SYSTEM.