Product Description
Material choice: spring steel
60Si2MnA
60Si2CrA
55Si2Mn
38Si7 

Product Feature
Surface Treatment
plain (oiled)
color paint
oxide Black (most choice)
galavazing
DHG

Inspection machine
Brinell Hardness Tester
Carbon and Sulfur Analyzer
Rockwell Hardness Machine
Automatic Impact Testing Machine
Metallographic Microscope
Automatic High-speed Analyzer
Fatigue Testing Machine
Metallographic Specimen Polishing Machine
Metallographic Specimen Pointing Machine

Package
25 kg double-layer woven bag with free fumigation wooden pallent
36bags/pallets
20pallets/20ft

Application
Speed <120km/h
High-way speed >120km/h