air jet covering yarn 1.Original Aiki from Japan 2.RPR machine 3.6 POY,DTY,FDY & dope dyed yarn supplier 4.Free sample air jet covering yarnApply to socks,seamless garment, etc.Alao supply nylon 6 POY, DTY, and dope dyed yarn 6 DTY product ranges :15D~1000D Nylon air jet covering yarn