... high effiency ,quality and low cost . Two-for-one twister achieves one turning two twisting .its effiency is higher than traditional ... best equipment in cotton mill.Operation mode: two sides one layer ,pneumatic guiding yarnTwisting range:128~2800 t/mSpindle ... passage of auto-knot yarnEasy to adjust tension device ,fitting for all kinds of yarnsPneumatic threading system ,guiding yarn accurate and ...