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The ASTRA seal is comprised Stainless steel 302 flat wound ribbon spring encapsulated in either a Teflon® FEP or PFA jacket to form an O-ring.

These specialised seals are particularly suited for use at extreme low temperatures (-250°C).  At these very low temperatures other seal materials become brittle and usually this is followed by seal failure 다운로드.

Download our product information sheet here 세계명곡 다운로드.

…simply no better seal for cyogenic applications…