Key Specifications/Special Features
Quality Control
 
We can supply forging part with follow test reports :
1)Chemical composition report
2)Tensile strength report
3)Brinell hardness report, Rockwell hardness
4)Metallographic structure report
5)Key dimension checking record report
6)Full dimension report
7)Third-party test report  

 Inspection:
Inspection: in-house and third party
All the products are strictly inspected by operator and skilled QC with record put down.
Universal inspection tools: three-coordinates measuring machine,hardness tester, Height ruler, Depth ruler, Outside ruler, Venire Caliper, etc.

INTRODUCE:
We Qingdao Haozhifeng Machinery Co.,Ltd, is a leading enterprise, specializing in mechanical parts of torque for bushing with different size and material. Torque rod bushing is mainly used in mechanical system as auto, truck, tractor and so on which demand torque rod bushing spare part. With high metal strength, torque rod bushing works long hours. Coated with kinds of surface treatment of environmental fluid, torque rod bushing obtains strong mechanical properties and resistance to corrosion.