What payment terms do you accept?

We accept LC, T/T, Western Union, Small-amount payment, and Money Gram.

What is the warranty policy?

We hold responsibility for issues caused by our fault, such as short delivery or improper packing, and will help lodge claims against shipping companies if needed.

Zinc Alloy Large Anti-Theft Security Chain Door Guard

Name: Zinc Alloy Large Anti-Theft Security Chain Door Guard
Brand: Guangzhou Lockvel Security Technologies Co., Ltd.
SKU: 920247935

Guangdong, ChinaGuangzhou Lockvel Security Technologies Co., Ltd.

US$10.00

500 Pieces

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

Material

Zinc Alloy

Type

Combination Lock

Model NO.

SDG-04

Style

Modern

Shape

T Shape

Anti-theft Standard

Part

Remote Controller

Backset

60mm

Door Thickness Fits

Customized

Lock Cylinder Length

135mm

Usage

Household Door Locks

Transport Package

Carton

Trademark

Lockvel

Origin

China

HS Code

83021000

Production Capacity

5000

Key features

Premium Zinc Alloy Material: Constructed from durable zinc alloy with black rubber stopper for enhanced security.

Customizable Door Thickness: Door thickness fit is fully customized to suit various door specifications.

OEM & ODM Services: Professional OEM and ODM services available for brand customization.

20+ Years Manufacturing Experience: Backed by over two decades of expertise in building hardware manufacturing.

A-Grade Anti-Theft Standard: Meets high A-grade anti-theft standards for superior household security.

T-Shape Modern Design: Features a modern T-shape style suitable for contemporary household doors.

Flexible Shipping Options: Allows loading mixed products in one container for efficient logistics.

Comprehensive Quality Guarantee: Full responsibility for defects with immediate refund or exchange upon verification.

Company profile

High Repeat Buyers ChoiceSelf-branded

Guangzhou Lockvel Security Technologies Co., Ltd.

Guangdong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2018-03-05Nearest Port: Guangzhou portAverage Response Time: ≤8.42hTerms of Payment: LC, T/T, Western Union, etc.International Commercial Terms(Incoterms): FOB, CIF, FAS, DDP, EXW, Others

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad customization and ODM/OEM capabilities, supported by product development activity and design tools. It reports production-related infrastructure, inventory capacity, valid contracts with associated subcontractors, and lead times within 15 working days in both peak and off-season periods. Quality assurance is reported, with two inspectors and several testing facilities; however, finished-product inspections and corrective/preventive actions lack written records. Innovation evidence is mixed: the supplier has developed new products and offers ODM services, but reports zero patents and no available SDK, while formal R&D audit documentation is unavailable. Export experience is established, but overseas service infrastructure is limited, with no overseas branches, agents, warehouse, showroom, or trade-show participation. Certification, after-sales service, and customer-case evidence are insufficiently documented.

Supplier typeThe supplier operates as a manufacturer offering OEM and ODM services, customization, inventory support, and export services. It has exported for six years, with exports representing 11%–20% of total sales, but has no overseas branches or agents.

After-Sales capabilityThe supplier has a clear customer-complaint handling procedure with followed records, which supports complaint-response capability. However, no broader after-sales service scope, overseas service network, branch, agent, warehouse, or showroom is reported.

R&D capabilityThe supplier reports new product development during the past year, ODM services, and R&D design using PS, AI, and CAD. Countervailing limitations include zero patents, no SDK, and no R&D design input, output, review, verification, or validation documents available for audit.

Production capacityProduction capability is supported by assembly and product-life testing equipment, a stated production base across several locations, inventory capacity, valid manufacturing contracts with associated subcontractors, and lead times within 15 working days in both peak and off-season. The inspection process has instructions but no written records, limiting process-documentation strength.

Customization capabilityThe supplier explicitly offers customization from samples and designs, full, minor, and flexible customization. Its R&D engineers develop products according to customer requirements, indicating broad customer-specific design support.