... on plastic material,paper,Boxes-corrugated packaging for paper,foods and so on.(Especially helix ,N.C CUTTER,Flexo Printing slotter ... paper machine are the first class products for domestic market and export overseas ,Upper slitting knives, lower slitting knives,steel ... x7.5;Quality: Super good AMonthly Export Quantity: 100sets/month. High Speed Steel Carton Slotter Knife/Blade_Top for Flexo Printing