Lubricants - determination of load carrying capacity four balls method 润滑剂承载能力测定法
2.
Petroleum and related products - determination of the extreme pressure and anti - wear properties of fluids - four ball method european conditions 石油和相关产品.液体的极端压力和耐磨性能的测定.四球法
3.
Petroleum and related products - determination of the extreme - pressure and anti - wear properties of fluids - four ball method european conditions 石油及其产品的试验方法. bs 2000 - 239 :流体的极限压力和耐磨特性测定.四球法
4.
Petroleum and related products - determination of the extreme - pressure and anti - wear properties of fluids - four ball method european conditions iso 20623 : 2003 ; german version en iso 20623 : 2003 石油和相关产品.液体的极限压力和抗磨性能的测定.四