TUV Test Report for BONOSS Wheel Studs 1/2-20 UNF Decarburization Test-hardness method/Retempering Test/Hardness Test (No: 01 220 CHN/T-2000112)

TUV Test Report for BONOSS Wheel Studs 1/2-20 UNF

Decarburization Test-hardness method: (Test Method: refer ISO 898-1:2013+Cor-1:2013)

Retempering Test: (Test Method: refer ISO 898-1:2013+Cor-1:2013)

Hardness Test: (Test Method: ISO 6507-1:2018)

No: 01 220 CHN/T-2000112

Material:SCM440