Double Spring Heat Sensitive Auto Vent Opener, Anti-Deformation Alloy Auto Vent for Agricultural Greenhouse

Double Spring Heat Sensitive Auto Vent Opener, Anti-Deformation Alloy Auto Vent for Agricultural Greenhouse. Temperature Sensing Auto-Adjustment: Accurately senses temperature changes to automatically adjust window opening amplitude. Power-Free Automatic Operation: Realizes constant temperature growth without batteries or electricity. Alloy-Reinforced Anti-Deformation: Features a robust design to prevent deformation under stress. Double Spring Structure: Equipped with a durable double spring mechanism for reliable operation. 5-Year Warranty Coverage: Provides comprehensive protection for 5 years against defects. Flexible Customization Options: Supports full, minor, and sample-based customization with flexible terms. Multiple Color Options: Available in silver, black, blue, yellow, and red finishes. Fast Lead Time: Standard production within 15 workdays for both peak and off-peak seasons.