기능

• The mounting screws are not visible in the square design.
• It fits the office space perfectly.
• 3 Valve adjustment, all season type that is not affected by temperature changes in four seasons.
• The door closure speed includes a first speed section that controls the overall closure speed, a second speed section that controls the closing speed, and two speed sections.
• A latching action function that quickly closes the door when it reaches approximately 2° of the closing position is provided as standard. This is effective for airtight doors and doors with electric locks, and can be closed more securely.
• For opening doors.