Black ABS/Nylon Plastic Honeycomb Spool core CHARACTERISTICS APPLICATIONS a. High Temperature Resistant b. Smooth Surface Appearance c. High Cleanliness d. Resistant to 80-150 degrees high temperature barbecue; e. Not Deformation, Not Degeneration ,Highly Efficient Winding and High Strength a. electrical industry,cell membrane winding b. Lithium battery diaphragm winding. c. Solar back winding. d. lithium-ion battery diaphragm material e. aluminum-plastic film Honeycomb Spool Core, Wheel Type Drum for Lithium Electric Industry , plz contact us,we are your best choice.It can be used in electrical industry,cell membrane winding,and there are more details