Paperboard Coil Quality - This unit EI coil sample needs to reform to a 100% Square hole shape.
This paperboard coil is not with 100% square, so it is required the finger to press the paperboard coil sometimes on stacking. The standard square quality coil does not need to use a finger to press the paperboard coil while stacking.
2 type Paperboard Coil Quality - The Left unit sample needs to reform to a 100% Square hole shape, it will be helpful with 100% all q'ty EI core lamination to stack into the coil.
*The left side Coil requires a reformed square shape, Right side Red Coil is a good square form shape quality.
Customer Order-Made for 11.5 cm Lamination in Height - Paper Insulation Coil