Quality Control

DHDZ Laboratory And Inspection Equipment

Vernier caliper

Impact test machine

Metrology microscope

Direct reading type spectrometer

Dry penetration

Protable hardness meter

Hydraulic specimen broaching machine

Metallographic sampling machine

Ultrasonic flaw detector

Magnetic particle detector

Zwick roell hardness tester

Impact specimen notched projector

Mechanical multi-tester

Digital ultrasonic detector

DHDZ Production Process

Raw material 

Heating

Ring rolling

Mechanical test

Machining inspection 

Drilling

Final inspection

Warehousing

Spectrometer inspection

Forging

Heat treatment 

Impact test

CNC  lathe 

Drilling inspection

Packing

Loading

Material cutting

Forging inspection

Heat treatment recording

Machining

CNC lathe inspection 

Stamping

Pallet packing

Delivery