Many people go to a metal detection research department, tested the watch shell plating thickness, the equipment they use a strong radiation experiment was completed, remove the case again, bad!
After the fabrication of the U type tubular mode heat exchanger core is completed, the shell side hydro-test shall be performed in order to protect the joints of the tube and the tube from leakage.
U型管式换热器芯子制作后应进行壳程水压试验，以确保管接头及管不泄漏。
3
The Olympic Stadium is now starting to take shape, with the outer shell that will support the fabric roof and upper tier of seats already completed.