SGS Test Report for BONOSS Shell type Wheel Bolts M14x1.25 Decarburization Test (No: GZIN1912066716ML)
SGS Test Report for BONOSS Shell type Wheel Bolts M14x1.25 Decarburization Test Test Method: ISO 898-1:2013+Cor-1:2013 No: GZIN1912066716ML Grade:12.9 Material:SCM440