... to the equipment's different using, we choose the surface excellent anti-corrosive tube. Because the electrical heated tube scaling ... liquid , we made the special dispose of the electrical heated tube's surface. We consider the installation and using of ... : 8mm, 10mm5. Sealing style: Glass, RTV, epoxy resin6. Electrical performance; long-term placed, insulation value more than 10000mΩ, leakage ...