خط تولید راه راه راه

B C E Flute Corrugated Board Prodcuion Line For Two Layer Corrugating Paper 1.Main Features for Single facer corrugated board Production Line 1. Cover vacuum suction. 2. Corrugating roll is made of high quality alloy steel 48CrMo, the surface is medium-frequency quenched and chrome-plated. Hardness ...