... ,10/3,20/3 polyester yarn ,aramid yarn:250D,1000D hemp yarn wire and cable polyester yarnpp filling yarn3000D---300KDcotton ... yarn 7/10,10/3,20/3polyester yarn ,aramid yarn:250D,1000Dhemp yarn wire and ... in shrink-wrapped coreless rolls,rolled on paper cores and capable of working with continuing throughout their length. ...