
Bs En 13445-6:2009/A1 - Unfired Pressure Vessels - Requirements For The Design And Fabrication Of Pressure Vessels And Pressure Parts Constructed From Spheroidal Graphite Cast Iron
出版:British Standards Institution

专家解读视频
Bs En 13445-6:2009/A1 - Unfired Pressure Vessels - Requirements For The Design And Fabrication Of Pressure Vessels And Pressure Parts Constructed From Spheroidal Graphite Cast Iron
出版:British Standards Institution
专家解读视频