stainless steel small extension springs

$0.10 - $0.12
Min. Order
50000 Pieces
Company Information

Yueqing DOFO Spring Manufacturing Co., Ltd.

CN Manufacturer, Trading Company
Response Time
Response Rate:
US$ 100+
13 Years Paid Supplier Gold Supplier Onsite Check Trade Assurance
Learn More

Quick Details

Port: Ningbo or Shanghai
Payment Terms: L/C,T/T,Western Union,MoneyGram
Supply Ability: 1000000 Piece/Pieces per Month FOB, CNF, Express Available
Place of Origin: Zhejiang China
Brand Name: DOFO
Model Number: DFS225
Style: Coil
Load Type: Extension
Material: Stainless Steel
Usage: Industrial
Function: small extension springs
Steel Standard: RoHS
Surface Treatment: washing
End Treatment: hook
Salt Spray Test: 48 hours available
QC report: Material report, Sample report, Bulk report
HS CODE: 7320.9090
Quality Guarantee: ISO9001, TS/16949, ROHS
Packing: Inner carton, outer wooden case
Standard Carton Size: 23*23*31/cm
Packaging Detail: Inner Packaging: Transparent OPP Bags; Outer Packaging: export Cartons (23*23*31/cm). Shipping packaging: wooden cases
Product Description

stainless steel small extension springs 


MaterialRoHS carbon spring steel
End Typehook
Surface Treatmentwashing
Wire Dia. OptionWire diameter ranging from 0.08-12.0mm
Material Option

Stainless steel:

SUS301(1.4310), SUS302(1.4307), SUS304, SUS316, SUS631(17-7ph), X-750
Carbon steel: SWC-72A,SWC-65Mn, 82B, 60Si2Mn, 55CrSi(55SiCr),SAE1070,

SWPB(Music wire), EN10270-1 SH, DIN 17223, ASTM-A228 .etc
Copper/Brass: Brass(CuZn36,CuZn40),copper(C1100), phosphor bronze  copper(CuSn6), beryllium bronze copper,enamelled wire .etc
Alloy: titanium alloy etc.

Surface finish option

 Prevent Rust oil, Black-dyeing, Paint drying, electrophoresis, Electroplating, zinc plating, Nickel plating, chrome plating, galvanization, passivation, ultrasonic washing, phosphorization, dacromet, Teflon coating,

environmental protection plating with ROHS test, salt spray test etc


Auto Motive Springs: Aviation, automotive, motorbike, bicycle.

Industrial Precision Springs: automatic equipment springs, medical machine springs, toy springs, mold, and  other industrial springs.

Electrical & Home Appliance Springs: household appliance, circuit board, computer, instrument, furniture, telecommunication, electric tools, etc.


1. Drawings-Guide production Management for all the compression spring, extension spring, torsion spring, wire forms, snap springs.

2. Raw Material ROHS certification

3. Stable Supplying Chain & Sales Scale

4. Famous Brand Certificate in the district Wenzhou

5. Above all, great wish to cooperate with client

Factory EquipmentCNC spring formers, tempering furnace, end grinder, shot-blasting, lathes, millers, punches etc.
Testing MachinesProjector, digital hardness tester, digital torsion strength tester. digital tension and compression strength tester. elasticity tester. life tester, salt spray test machine etc.
Quality Control

1. PPAP.APQP,SPC,FMEA,MSA  quality management.

2. Tolerance control: DIN, JIS Standard.

3. Raw Material: all material can have ROHS certification

4. Production Procedure: 7 times Inspection before delivery, Welcome Quality inspection from your side before delivery.

5. Traceable management throughout all process from raw material to customers.

CertificationISO9001,TS16949, ROHS


OEM small extension springs Main Feature:

*TS16949 green supplier

*0.2mm wire diameter

*Stock warehouse service available

*Please inquiry us if any doubt.


ATTN: Read This Before Buying 


A. Due to the internet and computer display solutions. The actual products may differ from

the pictures. Please contact our salesmen for further assistance.

B. All the extension springs, compression springs, torsion springs, wire firms can be made in customized demands.

C. We appreciate Drawing-Guide Production, Please send us spring drawing as possible as you can when you inquiry.

D. We appreciate your inquiries and you are welcome all the time!

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