| there is nothing A 350 Gr P22 but " A 335 " Gr P22 and it dose not need pack purging Best Regards , ENG. Ahmed Osman TEL. +213 793092233 --- On Sat, 8/22/09, kambiz zamani <kambiz_zamani50@yahoo.com> wrote:
|
Materials selection, welding, forming, Heat treatment, corrossion, NDT
Comments