**Brief Introduction**
SDZ19 general‑purpose folding lock is a cost‑competitive mass‑volume product for broad‑consumer commuter markets. It combines folding‑lock portability with baseline anti‑theft security. Key‑operated and supplied with frame‑mount bracket. Optimized for mass retail via supermarkets, cross‑border marketplaces and physical accessory shops. Works both as standalone merchandise or primary lock within bundled product sets. Mature supply‑chain ensures short lead‑times.

**Material & Craftsmanship**
Alloy‑steel lock segments with standard reinforced hinge rivets. Wear‑resistant engineering‑plastic bumper shell. Copper key cylinder. Original‑equipment frame‑mount bracket.

**Key Features**

1. Cost‑effective universal folding‑lock solution ideal for large‑scale mass‑market distribution.
2. Alloy‑steel segments satisfy baseline anti‑theft needs for everyday urban parking.
3. Simple key‑operated mechanism with minimal end‑user learning curve.
4. Compact folded‑size form factor with frame‑mount bracket for on‑bike storage.
5. Mature OEM private‑label service: custom shell colors, laser‑engraved logos and packaging.

**Application Scenarios**
Commuter bicycles, mountain bikes, e‑bikes and e‑scooters.

**OEM & ODM Service**
Abundant neutral‑logo stock available. Supports small‑batch mixed orders as well as full‑container bulk shipments.