Gem Bids For Ect Straight Bobbin Probes For Moderator Heat Exchanger Tube Material: Sa-213 Tp 316l Tube Od 12.6 M , Ect Flexible Bobbin Probes For Moderator Heat Exchanger Tube Material: Sa-213 Tp 316l Tube Od 12.6 M , Ect Straight Bobbin Probes For Pht Heat Exchanger Tube Material: Incoloy-800 Tube Od 12.6 Mm X 1.15 , Ect Flexible Bobbin Probes For Pht Heat Exchanger Tube Material: Incoloy-800 Tube Od 12.6 Mm X 1.15