Description
1. Two-way opening function
The movement adopts high-quality imported aluminum die-casting, and the hardness of imported aluminum is superior to that of zinc alloy
2. Two-stage speed regulation function
The first stage: 90°-15° is the closing stage. The second stage: 15°-0° is the locking stage. The adjusting valve should only be slightly adjusted and cannot be screwed out to avoid hydraulic oil leakage.
3. Aluminum alloy material movement
The inner movement of the trench-free ground spring is made of precision-cast aluminum alloy, and the fully sealed movement design is waterproof, rust-proof and corrosion-resistant.
4. Solid base
The base panel of the trench-free ground spring is made of stainless steel for process treatment.
