... C 3. Easy to operate Explosion-proof thermocouple WRN-140/240/340/440 (1) Model No.: WRN-140/240/340/440(2) Brand ... & Oxidized finish, SWG 10 to 36. PT/PTRH 10%, 13% .Thermocouple Extension & Compensating Cables: Fiber glass covered, PVC / PVC. Asbestos / Asbestosis ... core, Also Teflon /silicon rubber Teflon/shielded/Teflon etc qualities.Thermocouple M.I. Cables: SS 316, 310 & Inconel 600 quality ...