[{"text_idx": "#000000", "text": "Pneumatic Drum Type of Control Valve"}, {"text_idx": "#000001", "text": "Manual Drum Type of Control Valve"}, {"text_idx": "#000008", "text": "Poppet type Namur Solenoid Valve"}, {"text_idx": "#000009", "text": "Spool type Namur Solenoid Valve"}]