... material: corrugated paper 2.printing:customed 3.size:customed 4.surface treatment:customed ... . Cardboard Edge Crush Tester 2. Box Compression Tester 3. Cardboard Mullen Bursting Tester 4. Cardboard SamplerWhat ... we can do:1-Size: do any size according to customers.2-Flute: A, B ... , C, E, AB, AE, BC, BE, etc.3-Layer: 3, 5, 7, ...