66 99 Sewing Machine Singer Upper Tension Spring Parts - Spring - Hardware Accessories - Tools & Hardware - Video

Model NO.:

DF2103666

Function:

Pressed, Buffer

Material:

Steel

Usage:

Industrial, Auto, Motorcycle, Home Appliance

Load Type:

Extension

Production Process:

Cold Roll

Shape:

Coil

Product Name:

Sewing Machine Tension Spring

Business Mode:

Factory OEM

Material Standard:

GB 4357-09 or Equivalent

Wire Range:

From Min 0.1mm(0.004inch) to Max 12mm(0.48inch)

Winding Direction:

Left and Right

End Type:

Different Hooks Available

Surface Treatment:

Zinc Coated

Coating Thickness:

8~10 Micrometer

Testing Method:

Random Sample Inspection

Tolerance:

GB Standard, Grade II or as Per Your Requirement

Spring Rate Tolerance:

+-3%~10%

Aql Level:

Aql 1.0

Packing Method:

OPP Bags with Blank Carton

Normal Carton Size:

23X23X31/Cm with No Mark

Certificate:

ISO9001, SGS, RoHS, CE, Ts16949

Trademark:

DOFO

Transport Package:

Carton and Outer Wooden Case

Specification:

customized

Origin:

Wenzhou, China

HS Code:

7320909000