1. Hydraulic Shaftless Mill Roll Stand   Full hydraulic drive realizes paper clamping, lifting, centering and translation; multi-point braking system; 2 paper trolleys per stand for simultaneous dual-side feeding. 2. Automatic Splicer   PLC automatic control enables zero-error high-speed splicing (max 250m/min); paperless tail splicing (40mm overlap) reduces waste; automatic tension control and alignment. 3. Preheater (R09B/RG-4-900)   Φ900mm roller (pressure vessel certified); 360° electrically adjustable wrap angle; precision ground + hard chrome plated for long service life. 4. SF-320C Fingerless Single Facer (3 sets)   48CrMo alloy corrugated roller (Φ320mm, medium-frequency quenching + hard chrome plating); modular roller replacement; hood-type suction with high-pressure fan; electric adjustment of glue width and amount; spra...