1. Apply to chemical fiber paper tube DTY,POY,FDY, in particular, spandex tube crimping and chamfer milling. USE Apply to chemical fiber paper tube DTY,POY,FDY, in particular, spandex tube crimping and chamfer milling.After the fine cut paper tube ground into round and smooth inside and outside the standard paper tube.FEATUREfor high-volume production of chemical fiber industry tube.automatic ...