What is your after-sales service policy?

Any defective products, Please send us the pictures of defective products to check. If the problem occurred by us, products can be returned, we will send you a replacement without extra fee.

Can I get a free sample before ordering?

Sure, free sample is available for checking, but you need to pay for the express cost, the delivery is about 2--4 days.

What is your delivery time?

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

How can I trust you in the first cooperation?

Samples can be sent to check our quality and welcome to visit us to talk face to face.

Stainless Steel Plate Handle Set Wooden Door Mortise Lock with Key Cylinder

Name: Stainless Steel Plate Handle Set Wooden Door Mortise Lock with Key Cylinder
Brand: Guangzhou Longterm Technology Co.,Ltd.
SKU: 807006635

Guangdong, ChinaGuangzhou Longterm Technology Co.,Ltd.

US$15.00-20.00

20 Sets

Product profile

Customization

Available

Material

Zinc Alloy

Type

Key Lock

Model NO.

LB-20S58007019

Style

European

Shape

Mortise Door Lock

Anti-theft Standard

Part

Lock

Door Thickness Fits

Customized

Lock Cylinder Length

70mm

Usage

Household Door Locks, Bedroom, Channel Lock

Delivery Detail

25-35days After The Deposit

Samples

Reasonable Quantity Samples Are Free on Request

Supply Ability

100000 PCS Daily Output

Logo

Longterm or OEM

Service

24 Hours Response

Transport Package

Poly Bag+Whiter-Box+Master Carton

Specification

various

Trademark

LONGTERM

Origin

Guangdong, China

HS Code

8302410000

Production Capacity

100000 Piece/Pieces Per Day

Key features

Premium Material Construction: Made of SUS304 stainless steel, zinc alloy, and brass for high durability and anti-rust performance.

Customized Door Thickness: Door thickness fits are fully customizable to meet specific installation requirements.

OEM and ODM Services: Professional R&D team supports custom designs and samples since 2007.

High Quality Control: Every process is checked, and 100% inspection is performed before packing.

Fast Sample Delivery: Free samples available with express delivery time of 2-4 days.

Robust Packaging: Multi-layer protection including EPE bags, poly bags, and 5-layer master cartons.

Reliable After-Sales Support: Free replacement provided for defective products caused by the manufacturer.

High Daily Output: Supply ability of 100,000 pieces daily ensures timely delivery.

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: ≤9.69h

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?

GUANGZHOU LONGTERM INDUSTRIAL TECHNOLOGY CO., LTD. is the subsidiary of Guangdong Yunhui Industrial Limited Company(HYH group). We are a professional manufacturer from Guangdong.

Q:Where is your factory located?

Our factory is located in Foshan, established in 1992 with 20000m2 and more than 100 employees, only 30 minutes to CBD of Guangzhou and 30 minutes to Guangzhou Baiyun international airport.

Q:Can you produce handles according to customer design?

We started OEM and ODM business since 2007. We have our R&D department to handle this. Please refer us samples or 3D drawing, 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, process, polishing, electroplating. And each product will be inspected before packing by our QC staffs.

Q:How are your products packed?

Our products are packed with multi-packing to protect from the long-district transportation. EPE bag+ thick poly bag+ hardboard inner box +5-layer master carton. Pallets are available if required, but the charge should be paid by you.