**Brief Introduction**
SDZ15 balanced‑spec rectangular folding lock is SENDE’s mainstream mass‑selling folding‑lock model. It rationally balances product weight, anti‑theft performance and procurement cost without excessive over‑engineering driving‑up prices or compromising baseline security specifications. Key‑operated alloy‑steel lock‑blades with frame‑mount bracket included. Validated via numerous overseas bulk orders with mature supply‑chain and reliable lead‑times. Ideal for large‑scale distribution by wholesalers and cross‑border platforms, balancing B‑side profit margins and end‑user practical experience.

**Material & Craftsmanship**
Moderate‑thickness quenched alloy‑steel lock‑blades. Standard‑spec reinforced hinge rivets. Scratch‑resistant wear‑proof engineering‑plastic bumper shell. Copper key cylinder. Full‑set frame‑mount installation bracket.

**Key Features**

1. Optimized equilibrium among security performance, product weight and procurement cost, well‑suited for wide‑market large‑volume distribution.
2. Alloy‑steel lock‑blades satisfy anti‑theft demands for ordinary urban‑area parking.
3. Straightforward key‑operated mechanism with low end‑user learning threshold.
4. Compact folded dimension with standard‑issue frame‑mount bracket for on‑bike portability.
5. Mature OEM private‑label capability: customizable shell colors, laser‑engraved logos and packaging.

**Application Scenarios**
Bicycles, e‑bikes and e‑scooters for general‑security‑level urban commuter‑parking environments.

**OEM & ODM Service**
Ample neutral‑logo stock; custom logos and color‑box packaging. Accepts mixed‑batch and full‑container orders.