7mm Pyrodur 104 EW 30 Internal
10mm Pyrodur 60-10 EW60 Internal
11mm Pyrodur 30-203 EW30 External
13mm Pyrodur 60-20 EW60 External
15mm Pyrostop 30-10 EI30 Internal
18mm Pyrostop 30-20 EI30 External
23mm Pyrostop 60-101 EI60 Internal
27mm Pyrostop 60-201 EI60 External