Pipe threads used in hydraulic circuits can be divided into two types: a) Jointing threads â are pipe threads for joints made pressure tight by sealing on the threads and are taper external and parallel or taper internal threads. The sealing effect is improved by using a jointing compound.
You can renew by mail using Form DS-82 if your most recent passport: 1  Is submitted with your application. 2  Is undamaged (other than normal wear and tear) 3  Was issued when you were age 16 or older.  Was issued within the last 15 years.
I have run out of blank visa pages on my passport, but it does not expire for another three years, what do I do? If you are a US citizen, submit your passport to Travisa for the addition of pages, which will be affixed in your current passport by the US State Department. Call Travisa to obtain a list of the required documents and form.