This machine is suitable for vacuum setting yarn, dacron yarn , knitting wool, wool top, chemical fiber, sponge wipes, curtain ... and features1. This machine is suitable for vacuum setting yarn, dacron yarn , knitting wool, wool top, chemical fiber, sponge wipes, curtain ... , polyester fiber theory, computer floss silk, sewing thread, knitting line, lace yarn, zip thread, etc. 2. Its main use for ...