(1)控制多个元件的顺序动作; (2)用于保压回路; ( 024-03104-000S T6C 017 1R00 B1T6C0171R00B1 024-03104-001S T6C 017 1R01 B1T6C0171R01B1 024-03104-002S T6C 017 1R02 B1T6C0171R02B1 024-