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Product profile
Customization
AvailableFunction
Pressed, BufferMaterial
SteelModel NO.
DF2101390Usage
Industrial, Home Appliance, Keychain RingLoad Type
CompressionProduction Process
Cold RollShape
CoilProduct Name
Small Spring for Key FobsBusiness Mode
Factory OEMMaterial Standard
GB 4357-09 or EquivalentWire Range
From Min 0.1mm(0.004inch) to Max 12mm(0.48inch)Winding Direction
Left and RightEnd Type
Customized Shapes AvailableSurface Treatment
Nickel PlatedCoating Thickness
8~10 MicrometerTesting Method
Random Sample InspectionTolerance
GB Standard, Grade II or as Per Your RequirementSpring Rate Tolerance
+-3%~10%Aql Level
Aql 1.0Packing Method
OPP Bags with Blank CartonNormal Carton Size
23X23X31/Cm with No MarkCertificate
ISO9001, SGS, RoHS, CE, Ts16949Transport Package
Carton and Outer Wooden CaseSpecification
customizedTrademark
DOFOOrigin
Wenzhou, ChinaHS Code
7320909000Production Capacity
1, 000, 000 Pieces Per MonthKey features
RoHS Compliant Materials: All spring materials including carbon steel and stainless steel comply with RoHS standards.
Custom Design Assistance: Engineers provide initial design assistance and CAD/3D/2D drawing formats to lower costs.
Flexible Order Quantities: We support both small quantity and large run orders based on your specific demand.
Sample Charge Refund: Custom spring sample charges are refunded upon receipt of the formal order.
Wide Material Range: Available wire diameter from 0.001 to 0.075 inches in various high-grade spring steels.
Fast Lead Time: Delivery within 25 days for standard springs; 30-40 days for complex shapes.
Stock Service Available: Warehouse provides specific stock service for long-term business with scheduled shipments.
Multiple Payment Terms: Accept T/T, L/C at sight, DP, PayPal, Western Union, and small-amount payments.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 26 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤1.28h
AI-Powered supplier vetting
SummaryThe supplier is a professional technical supplier with a strong emphasis on research and development, evidenced by their ability to provide 3D software design services and ODM capabilities. They hold several important certifications, enhancing their global competitiveness, but lack overseas warehouse and showroom capabilities. Though they have a comprehensive after-sales service protocol, their financial records over the last three years indicate zero revenues and profits, raising concerns about financial credibility. Their production capabilities are supported by valid contracts and in-stock services, though their presence in overseas markets is limited. They offer extensive customization services and have a structured approach to quality control, but do not handle OEM services for popular brands. Overall, their innovation and customization strengths are notable, yet financial and overseas market limitations may impact their future growth potential.
Supplier typeThe supplier is a professional technical supplier with R&D capabilities and a focus on innovation, having expanded their product range significantly over 20 years of development.
CertificationsThe supplier holds ISO9001, TS16949, ISO140001, OHSAS18001, and BV certifications, indicating a strong compliance and quality management framework.
After-Sales capabilityThe supplier has clear procedures and records for handling customer complaints and corrective actions, along with a quality assurance and traceability framework.
Financial creditThe supplier's financial records show zero operating revenues, costs, and profits over the last three years, indicating significant financial credibility concerns.
R&D capabilityThe supplier demonstrates strong innovation capability with evidence of new product development and ODM services, although they lack SDK availability.
Customization capabilityThe supplier offers extensive customization services, ranging from full to minor and flexible customization, demonstrating strong design and adaptation capabilities.
Client casesThe supplier does not provide OEM services for popular brands, which may limit their exposure to high-profile customer cases.
Product Q&A
Q:Which kind of materials are available? Do they meet RoHS certification?
A:
DoFo Spring is able to manufacture different spring types of compression springs, extension springs, torsion springs, wire forms with a large range of High-Grade Spring Steel - Carbon steel - Stainless steel - Music Wire, all comply to the RoHS standard. The wire diameter is available from 0.001 inches to 0.075 inches, which can meet the requirement of different applications.
Q:Do you support orders in small quantity or do you only accept large runs?
A:
DoFo Spring manufactures large quantity springs, small quantity springs based on your demand. We will work with you to choose the most effective solution.
Q:Does DOFO spring offer DESIGN service OR initial ASSISTANCE ON SPRINGS?
A:
Our engineers could give initial assistance on the design and advise to lower the production cost. Our engineer has years of experience in spring design. We could provide drawing format in CAD, 3D, and 2D design layout as well as prototype development.
Q:What is the typical lead time for custom springs?
A:
The lead time varies in custom springs. For compression springs, extension springs, torsion springs, wire forms in our mold range, we are able to deliver within 25 days. However, for some complex shapes of springs, the delivery time would be around 30~40 days.
Q:Do you charge custom spring samples?
A:
We make the custom springs sample charge as a subscription of formal order. In other words, the sample charge could be refunded when we receive the order. However, if your sample requires an additional mold, we will charge it.
Send Inquiry
*To:
Yueqing Dofo Spring Manufacturing Co., Ltd.
Yueqing Dofo Spring Manufacturing Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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