... flute cartons Flute: A, B, E, F, AB, etc OEM orders Item: Storage corrugated box We produce a variety of flute cartons. A flute, B flute, C flute, E flute, F flute ... , etc, and double layers flute ... can be customized2) Material: E flute. A flute, B flute, C flute, AB flute are available3) The paper box ...