Premium Material: Crafted from aluminum alloy, the greenhouse lock channels are sturdy, resistant to rust and corrosion. Flexible enough to bend and adapt to different greenhouse structures. 6.6 ft long, 1.2 in wide, 0.4 in high, and 0.05 in thick Smooth PE Coating: This spring wire comes with a PE coating, ensuring stability & durability. The PE layer boasts flexibility, to avoid damage to the greenhouse film. The channel lock set supports repeated installation and disassembly for long-term use Easy Installation: Fix the lock channel to the greenhouse frame with screws, place the plastic film on it, and then press the spring wire into the channel. Included screws enhance installation efficiency significantly Secure & Reliable Fixation: Our greenhouse lock channel set includes 20 channels and 20 springs wires, precisely matched to work together. They ensure the greenhouse withstand climate changes, improve weather resistance, and avoid damage or collapse

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