... 113513, with two groups of lever pressure device. 4. Touch roll section: Φ450 × 2000 one touch roll, rubber hardness is 95 ° ± 2 °, and ... supporting arm, two groups ofΦ320 three pneumatic tire pressure device, with bearing 113622 and one set of air control box ... 113620 bearing and support, arm, spanner positive and negative pressure device two groups. 7. dryer section: two Φ 2500 × 2000 dryers, with ...