Hi-Speed Doubling Rollers

In view of highspeed development of doubling rollers within China,through comparative way on new materials,new process against cots WRC513,it is concluded that the materiais with high moleculous as base for cot production is a selective way.The former improves much in its physical and chemical properties,as well as spinability as against the convential doubling rollers.It can be used as a substitute for the imported ones.