**Brief Introduction**
SDZ22 upgraded UFO‑shape combination folding lock iterates upon proven UFO‑oval‑silhouette combination‑lock baseline, focusing on enhanced sealing for combination dials. It addresses common industry pain points where sand‑dust and rain infiltrate combination gears causing jamming and malfunctions, especially in rainy or sand‑storm‑prone regions. Retaining classic UFO oval appearance, alloy‑steel lock‑segments and keyless resettable combination. Frame‑mount bracket included. This variant reduces end‑product failure rates and improves end‑customer reputation for overseas buyers operating in grit‑heavy or high‑rainfall territories.

**Material & Craftsmanship**
Alloy‑steel lock‑segments with reinforced hinge rivets. UFO‑shaped wear‑resistant engineering‑plastic outer shell. Upgraded sealed dust‑proof combination‑gear assembly. Complete frame‑mount‑bracket kit.

**Key Features**

1. Enhanced sealed dust‑proof combination‑gear assembly blocks sand‑dust and rainwater ingress, lowering failure rates under adverse outdoor conditions.
2. Highly‑recognizable classic UFO oval silhouette.
3. Keyless resettable‑combination unlocking for end‑user convenience.
4. Alloy‑steel lock‑segments deliver anti‑cut security; compact folded form plus frame‑mount bracket enable on‑bike portability.
5. Multiple shell‑color options; supports laser‑engraved logos and color‑box OEM customization.

**Application Scenarios**
Bicycles, e‑bikes and e‑scooters for rainy‑climate or sand‑exposed outdoor‑usage environments.

**OEM & ODM Service**
Custom shell colors, laser‑engraved logos and packaging. Optimized for overseas‑market orders facing complex environmental operating‑conditions.