板式气胀轴技术参数：单位mm
规格    充气前直径    充气后直径    适用卷管内径
1.5英寸    ∮37                          ∮42                      ∮38-∮38.5
2英寸    ∮49                          ∮53-∮54      ∮50-∮51
3英寸    ∮74-∮75          ∮78                      ∮75.5-∮78
4英寸    ∮99                          ∮105                      ∮101-∮102
5英寸    ∮125                          ∮130                      ∮126-∮128
6英寸    ∮150                          ∮154                      ∮151-∮153
8英寸    ∮200                          ∮206                      ∮202-∮204
10英寸    ∮250                          ∮260                ∮252-∮256
12英寸    ∮300                            ∮310                      ∮302-∮305