Number: 5768
Material: Datong special steel 304L
Multiplier：200x
Result: qualified 

Product Number: 6554
Microscope Magnification: 500x
Low-concentration chromium nitride was found at the grain boundaries.

Product Number: 3775
1.Material: 304 + Calcium Fluoride Test Sample
2.Twin boundary lines are not straight.
3.Martensitization of the edge after drilling; poor
machinability.
4.HRB 40

Product Number: 4776
Material Lot Number: 6852-0124
Results:
1.Grain size 0.015
2.Hardness HRH 85 degrees
3.No cracks in the molded product
4.Pass

Number：4776
Origin：United States
Multiplier：200x
Result：Grain size 0.015 passed

Product Number: 4776
Results:
1.Grain size: 0.015
2.Hardness: HRH 82
3.No cracking observed in the molded product
4.Verdict: Pass

Product number: 4776
Microscope magnification: 200x
Result: Grain size 0.015, Pass

Product Number: 4776
Results:
1.No cracks on protrusions ×50
2.Hardness HRH 84~87
3.Grain size 0.015
4.Determination: Qualified.