wangliang
Some people know that pressure vessel forensics requires several design reviews...
光头强
Ask a professional question about flaw detection. 20% of the annular seam of flaw detectio..
一路向东
There are three compartment grooves like this.
Is there a standard distance between the..
TuKai
I just want to know why some docking requires PR + PT and others just do R...
海阔天空
Under what circumstances does PT in ASME require to do..
是董小姐呀
Is there any difference between Dacrodacr and galvanized carbon steel bolts?..
big yang
Who knows what kind of aluminium alloy is used for - 192 degree cryogenic equipment?..
I am here in Dongfang Steel City, Xishan District, Wuxi City, Jiangsu Jinhua Yu Metal Prod..
小鱼曾乖乖
Ask the gods where the allowable stress of Q345D material can be found...