1. floors: Stroker, V belt
2. printing units: The air operated diaphragm pump pad, the cross valve, the cross valve coil, the trachea, air operated attaches
3. slots department: The cutting tool, picks out paper knife
4. other: The bolt
highest printing speed
economy printing speed
most greatly enters the paper area
most minor offense paper area
effective printer area
adaptation cardboard
chromatography precision
slot precision

就这些