What is the MOQ for this product?

The Minimum Order Quantity (MOQ) is 500 PCS.

What payment terms are accepted?

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

Zinc Alloy Door Safety Chain Concealed Door Chain

Name: Zinc Alloy Door Safety Chain Concealed Door Chain
Brand: Guangzhou Lockvel Security Technologies Co., Ltd.
SKU: 919810085

Guangdong, ChinaGuangzhou Lockvel Security Technologies Co., Ltd.

US$1.69-1.70

500 Pieces

Sample price:US$2.00/piece.Request sample

Product profile

Customization

Available

Material

Zinc Alloy

Type

Key Lock

Model NO.

SDG-03

Style

Modern

Shape

Ball

Anti-theft Standard

Part

Remote Controller

Backset

60mm

Door Thickness Fits

35-50mm

Usage

Household Door Locks, Bedroom, Channel Lock

Transport Package

Carton

Trademark

lockvel

Origin

China

HS Code

83021000

Production Capacity

5000 Sets/ Month

Key features

Premium Zinc Alloy Construction: Made from durable zinc alloy for enhanced security and longevity.

OEM & ODM Services: Custom manufacturing solutions available for diverse business needs.

Versatile Door Compatibility: Fits inward opening wooden and metal doors with thickness 35-55mm.

20+ Years Manufacturing Experience: Backed by nearly two decades of industry expertise and quality assurance.

Flexible Shipping Options: Mix-products loading in one container is available for convenience.

Comprehensive After-Sales Support: Immediate resolution for defects with refund or exchange options.

Standard Export Packaging: Securely packed in polybag and inner box within standard cartons.

Fast Production Lead Time: Efficient production cycle of 15-20 days for timely delivery.

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: ≤8.30hTerms 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.