Attack channel, a refractory component designed to conduct and direct molten materials, industrial fluids, or high-temperature process flows to the inlet, feed, or continuity area of the system. Its function is related to directing the flow toward the point of impact, protecting the passage against thermal shock, abrasion, and mechanical wear.

End Channel, a refractory component designed to form the outlet section in systems for conveying and discharging molten metal or high-temperature process flows. It directs the final discharge of the material, protecting the passage area against thermal shock, abrasion, and mechanical wear.