The cover of the electrical resistance heating. Varies depending on the material to be heated and the temperature of Use. In Electricfor standard sheath materials are : AISI 321 – AISI 34L – AISI 316L – Incoloy 800 – Incoloy 825 – AISI 309S – Copper – Steel – Titanium – Aluminum – PTFE.
Metal sheath
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