What is your after-sales service policy?

If defective products occur due to our fault, you can return them, and we will send replacements without extra fees. Please send pictures for verification.

Is a free sample available?

Yes, free samples are available for checking quality, but you need to pay for the express cost. Delivery takes about 2-4 days.

What is the delivery time?

Our delivery time is usually 20-30 days after receiving the deposit.

Luxury Good Price Security Best Cylinder Lock Set for Main Door

Name: Luxury Good Price Security Best Cylinder Lock Set for Main Door
Brand: Guangzhou Longterm Technology Co.,Ltd.
SKU: 859307055

Guangdong, ChinaGuangzhou Longterm Technology Co.,Ltd.

US$19.50

1 Set

Sample price:US$25.00/set.Request sample

Product profile

Customization

Available

Material

304# Stailess Steel

Type

Key Lock

Model NO.

LB-26S85004017

Style

Modern

Shape

Mortise Door Lock

Anti-theft Standard

Part

Lock

Backset

50mm

Door Thickness Fits

35-50mm

Lock Cylinder Length

70mm

Usage

Household Door Locks

Lock Body

8550

Finish

Ssp

Logo

Longterm or Customize for Clients

MOQ

1set

Technics

Die-Cast/Deburr/Process/Polish/QC/Plate

Electroplating Technology

Molecular Electroplating

Die Casting Machine

160 Tons

Electroplating Layer

>= 25um

Service

24 Hours Response

Certification

SGS, ISO

Transport Package

Polybag+Inner Box+Master Carton

Specification

SGS, ISO9001

Trademark

LONGTERM

Origin

Guangdong

HS Code

8302420000

Production Capacity

500000sets One Month

Key features

High Security Lock System: American standard lock system for superior security performance.

Premium Material Construction: SUS304 stainless steel handle and solid brass cylinder for durability.

Anti-Rust & Durable Finish: Strong anti-rust ability with molecular electroplating layer >= 25um.

Custom Logo Service: Logo can be customized for clients with an MOQ of 1 set.

OEM/ODM Capability: Supports OEM and ODM business with R&D department since 2007.

Certified Quality: Products certified by SGS and ISO9001 standards.

Free Sample Available: Free samples for quality check; buyer pays express cost.

Fast Response Service: 24-hour response time for customer inquiries and support.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceQuality AssuranceR&D Capabilities

Guangzhou Longterm Technology Co.,Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 13 years CertifiedNearest Port: Guangzhou PortAverage Response Time: ≤9.45h

AI-Powered supplier vetting

SummaryThe supplier is a Foshan-based hardware manufacturer with a production base exceeding 20,000 square meters, nine stated workshops, four production lines, and listed output across hinges, handles, locks, and smart locks. It supports customization from samples and designs and reports established export activity, with 71%–90% of sales from exports and 13 years of exporting. However, it reports no private-mold R&D, no 3D software design service, no SDK availability, and only one year of total R&D engineer experience. Certification management is weak because supplier-management-system certification is listed as NIL. Service controls are mixed: written procedures and records exist for service assessment, but there is no approved-supplier list and no written corrective-action or complaint-handling procedures. Financial evidence is limited to year labels without performance metrics. Customer cases are not provided.

Supplier typeThe supplier identifies itself as GUANGDONG HYH HARDWARE INDUSTRIAL Co., Ltd., operates from Foshan, China, and describes a factory with more than 20,000 square meters, nine workshops, and hardware manufacturing equipment. Its listed products and facilities support classification as a hardware manufacturer rather than a purely trading or service company.

CertificationsThe supplier-management-system certification field is explicitly listed as “NIL.” No other certification evidence is provided in the supplied slices, so the available evidence indicates a certification shortfall for this field.

After-Sales capabilityThe supplier has written procedures and followed records for assessing service capability, and it offers defined quotation and payment terms with a stated one-month lead time in both peak and off-season periods. However, it has no written corrective/preventive-action procedures or records and no written customer-complaint-handling procedures, which directly weakens after-sales governance.

R&D capabilityThe company description states that it has an R&D department for novel and popular designs, but the detailed capability data reports no private-mold R&D, no professional-technical-supplier capability, no 3D software design service, no SDK availability, and only one year of total R&D engineer experience. These explicit limitations outweigh the general statement about having an R&D department.

Production capacityThe supplier reports four production lines, nine workshops, integrated manufacturing equipment, and output covering multiple hardware categories, including 6,000,000 door hinges, 2,000,000 cabinet handles and knobs, 600,000 door-lock sets, 120,000 smart locks, and 6,000,000 cabinet hinges. Finished-product inspection instructions are uniformly followed, but the factory does not continuously reconcile quantities for each batch or production lot.

Customization capabilityThe supplier explicitly offers customization from samples and customization from designs. This directly supports product customization, although the supplier separately states that it does not provide 3D software design services and has no private molds.

Product Q&A

Q:Are you a factory or trading company?

We are a professional manufacturer, GUANGZHOU LONGTERM HARDWARE CO., LTD., a subsidiary of HYH group, specializing in high-quality hardware accessories.

Q:Where is your factory located?

Our factory is located in Foshan, established in 1992, with a 20,000m2 production base, about 30 minutes from Guangzhou CBD and Baiyun International Airport.

Q:Can you produce handles according to customer designs?

Yes, we have supported OEM and ODM business since 2007. Please provide samples or 3D drawings, and we will check the best prices for you.

Q:How does your factory handle quality control?

We have staff to check every process like die-casting, polishing, and electroplating. Each product is inspected by QC staff before packing.

Q:How are your products packed?

Products are packed with multi-packing including EPE bag, thick poly bag, hardboard inner box, and 5-layer master carton. Pallets are available upon request.