materiał ogniotrwały

Modern gas heaters still work this way although using other refractory material.

I possess also a range of tools for working with refractory materials.

Powdered slurry along the same route for the more refractory materials.

The phasers had run into a whole level of that refractory material, and it was giving them trouble.

She started to see a red glow from the refractory material.

Chromite is also used as a refractory material, because it has a high heat stability.

The pattern is then coated with a refractory material.

Chamotte is another refractory material that has been used.

A refractory material is one that retains its strength at high temperatures.

The number of anchors to be used depend on the operating conditions and the refractory materials.