
Petroleum and related products - Determination of the extreme-pressure and anti-wear properties of lubricants - Four-ball method (European conditions) (ISO 20623:2017)
出版:Asociacion Espanola de Normalizacion

专家解读视频
EN ISO 20623 : 2018 - Identical
ISO 20623 : 2017 - Identical
EN ISO 20623 : 2018 - Identical
ISO 20623 : 2017 - Identical