... belt 1, needle making belt used for high speed corrugated cardboard line. 2, low, middle and high speed line. ... :1, needle making belt used for high speed corrugated cardboard line.2, factory is the first researcher on ... surface ,more evenly and more effectively to help the cardboard bonding.7, strong ability to adapt.8, better ... . Supply industrial belt,neddle-making conveyerbeltof corrugated cardboard