More than 20 years experience Large production line, speedy delivery guarantee Stict quality control system Competitive price 1. Material: Corrugated board, craft paper, coated paper 2. Specifications: Corrugated fiber board is available in 3 layers, 5 layers and 7 layers according to your detailed requests. 3. Flute: A, C, B, E, AB, AC etc are all available
