Do you provide samples? Is it free or extra?

1. New customers who have confirmed their orders can get free samples without paying any costs including shipping. 2. New customers who want to test the product quality before confirming the order need to communicate with us and bear the transportation cost. 3. We will regularly push the pictures of new products to our regular customers, so the regular customers who are interested in new products can get free samples at the first time without paying any costs including shipping cost.

House Security Double Opening Brass Lock Cylinder for Interior Door

Name: House Security Double Opening Brass Lock Cylinder for Interior Door
Brand: Wenzhou Guangda Lock Industry Co., Ltd.
SKU: 1927506872

Zhejiang, ChinaWenzhou Guangda Lock Industry Co., Ltd.

Negotiable

200 Pieces

Product profile

Customization

Available

Material

Brass

Type

Key Lock

Model NO.

GD-B-003-A

Style

European

Shape

Mortise Door Lock

Anti-theft Standard

C Grade

Part

3 PCS Brass Key

Backset

30-90mm

Door Thickness Fits

40-160mm, Customized

Lock Cylinder Length

40-160mm, Customized

Usage

Household Door Locks, Bedroom, Channel Lock, Window Lock

Key

Computer Key or Normal Key

Opening Type

Double Opening Lock

Certificate

CE/TUV/ISO/Ma/14000/CNAS

Transport Package

as Per Your Requirement

Specification

40-160mm

Trademark

GUANGDA

Origin

Wenzhou, Zhejiang

Key features

C Grade Anti-theft Standard: Meets the highest C Grade anti-theft standard for superior security.

Durable Brass Material: Constructed from high-quality brass with SFT treatment exceeding 72 hours.

Long Mechanical Life: Minimum 5 years mechanical life with 600,000 opening-closing cycles.

Customizable Dimensions: Backset 30-90mm and cylinder length 40-160mm are fully customizable.

Multiple Protection Features: Built-in anti-pick, anti-drill, anti-bump, anti-snap, and anti-break options.

OEM & ODM Services: Full customization available for logo, packaging, color, and graphic designs.

Precision CNC Manufacturing: Processed by CNC machines with tolerance level +/- 0.001mm.

Comprehensive Certifications: Certified by CE, TUV, ISO, MA, 14000, and CNAS standards.

Company profile

Wenzhou Guangda Lock Industry Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2021-11-14 CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: >24h CertifiedTerms of Payment: T/T

AI-Powered supplier vetting

SummaryWenzhou Guangda Lock Industry Co., Ltd. is a China-based limited company established in 2010, with 151 employees and a stated manufacturing location in Zhejiang. The supplier reports ISO9001:2015 and ISO14001:2015 certifications, six production lines, a 17,000 m² manufacturing plant, and annual output of 1,000,000 door lock cylinders. It describes precision and digital machining equipment, product testing, international-standard production, customized lock manufacturing, and exports to multiple regions. However, several requested areas lack sufficient direct evidence: after-sales service, financial credibility, and customer case depth. The records also contain inconsistencies, including a “trade company” classification despite manufacturing information and an export start date later than a stated 2021 date in a separate record.

Supplier typeThe supplier is identified as a limited company located in Wenzhou, Zhejiang, China, with 151 employees and a stated factory at 368 Jihong Road. Manufacturing evidence includes a 17,000 m² plant and an industry classification of manufacturing, although one record labels the company nature as a trade company, creating a classification inconsistency.

CertificationsThe supplier explicitly reports ISO9001:2015 and ISO14001:2015 certificates. These provide direct evidence of quality-management and environmental-management certification, although certificate validity dates and issuing bodies are not provided.

R&D capabilityThe supplier reports professional lock technology for designing and developing new products, precision machinery, digital machining equipment, and two years of R&D engineer experience. This supports the existence of product-development capability, but no specific innovations, patents, or development outcomes are documented.

Production capacityThe supplier reports advanced equipment, strict product testing, a 17,000 m² plant, six production lines, 21–30 quality-control staff, and annual output of 1,000,000 door lock cylinders. It also states one-month lead times in both peak and off-peak periods, supporting substantial production capacity, though the annual productivity record is not fully detailed across all products.

Customization capabilityThe supplier explicitly states that it tailors various lock products according to customer demand and develops new products to meet customer requirements. This is direct evidence of customization capability, although no minimum order quantities, customization scope, or examples are provided.