
Fasteners From Steel With Minimum Tensile Strength Of 155 Kg/mm[2] And 180 Kg/mm[2], For Temperatures Up To 260 Degrees C - Specification
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
Fasteners From Steel With Minimum Tensile Strength Of 155 Kg/mm[2] And 180 Kg/mm[2], For Temperatures Up To 260 Degrees C - Specification
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频