JB/T 11784-2014
往复式内燃机 大功率柴油机 连续纤维锻钢曲轴 检验方法：湿法连续法磁粉检测
Reciprocating internal combustion engines - High power diesel engine - Continuous grain flow forged steel crankshaft - Inspection method:Wet-process continuous magnetic particle inspection
2014-05-12