Custom Metal Flat Coil Spring Door Lock Return Spring

Name: Custom Metal Flat Coil Spring Door Lock Return Spring
Brand: Qingdao Donrex Co., Ltd.
SKU: 2159677362

Shandong, ChinaQingdao Donrex Co., Ltd.

US$2.00

10,000 Pieces

Product profile

Customization

Available

Function

Pressed, Phonation, Buffer, Drive, Restoration, Measurement

Material

Stainless Steel

Model NO.

OEM

Usage

Industrial, Auto, Furniture, Motorcycle, Home Appliance

Deliver Time

Transport Package

Bubble Bag, Carton, Pallets or Wooden Box

Specification

Drawing

Trademark

OEM

Origin

China

Production Capacity

500000 PCS/Month

Key features

20 Years Manufacturing Experience: Proven track record of 20 years in manufacturing and global exporting.

Stainless Steel Material: Constructed from durable stainless steel for long-lasting performance.

Comprehensive Customization: Offers full, minor, design-based, and sample-based customization options.

Rapid Sample Availability: Samples provided within 10-30 days for quality verification.

Trial Order Support: Accepts small trial orders to build future business relationships.

Customs Clearance Assistance: Team available to assist customers with import customs clearance.

24/7 Sales Support: Sales department available 24 hours to solve customer problems quickly.

ISO9001:2015 Certified: Manufacturing process certified under ISO9001:2015 management system.

Company profile

Full CustomizationR&D CapabilitiesODM ServicesManagement Certification

Qingdao Donrex Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 18 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤10.09h

AI-Powered supplier vetting

SummaryThe supplier offers broad customization, exports approximately 90% of sales, has exported for 18 years, and reports standardized finished-product inspection instructions. It holds CE and ISO9001:2015 certifications and has seven R&D engineers, but launched no new products last year and is explicitly not classified as a professional technical supplier or a provider of 3D software design. The supplier lacks stated inventory, overseas warehouse, overseas showroom, overseas agents or branches, and offline trade-show participation. Manufacturing capacity is constrained by the absence of a valid contract with related subcontractors. Customer evidence is limited: there is no cooperation with Fortune 500 companies, while repeat-buyer preference is reported at 50%–80%. Financial credibility cannot be assessed because no relevant financial information is provided.

CertificationsThe supplier reports CE product compliance certification and an ISO9001:2015 management-system certificate. These are explicit certifications supporting compliance and quality-management capability.

After-Sales capabilityThe supplier reports no overseas warehouse, overseas showroom, overseas agents or branches, and no overseas service countries. It does provide several quotation and payment options, but the stated international service infrastructure is limited.

R&D capabilityThe supplier has seven R&D engineers and offers multiple forms of customization, but it is not a professional technical supplier, does not provide 3D software design services, and launched no new products in the past year. The evidence shows customization capacity but weak recent product-innovation evidence.

Production capacityThe supplier has written and uniformly followed finished-product inspection instructions, reports one-month average lead times in both peak and off-season periods, and identifies 40 qualified suppliers for service capability. However, it has no inventory capability and no valid manufacturing-capacity contract with related subcontractors, creating an explicit production-structure deficiency.

Customization capabilityThe supplier explicitly provides customization from designs, customization from samples, full customization, minor customization, and flexible customization. This is direct evidence of a broad range of customization services.

Product Q&A

Q:Can we get the samples?

Yes, we can supply you the samples for checking our quality within 10-30 days.

Q:Can we place a trial order first time?

Yes, we are glad to supply you small trial order, and hope your quantity will be big in future.

Q:Can you help us to do the customs clearance of import?

Yes, we can help you to do the customs clearance.

Q:What is your lead-time?

With our design, fabrication and manufacturing skills and experience, we can efficiently exceed your expectations and meet the time frame required. However, we guarantee that quality and service are never compromised.