金属按钮开关
PBM-22自锁 复位-A
PBM-22复位无灯-D
PBM-22复位带灯-F
PBM-22复位带灯-E2
PBM-22复位带灯-E1
PBM-19自锁 复位无灯-S
PBM-19自锁 复位无灯-R
PBM-19自锁 复位带灯-Q4
PBM-19自锁 复位带灯-Q3
PBM-19自锁 复位带灯-Q2
PBM-19自锁 复位带灯-Q1
PBM-19自锁 复位带灯-C3