The INSULTWIST anchor is used to secure multiple layers of ceramic fiber. It consists of 6.35 x 3.17mm studs, lockwashers (LWI), and in some cases cuplocks, and mounting clips (MTC) to secure the seams to the linings.
Stud Insultwist

Lockwasher

Mounting Clip

Monocrystal (Single) Fused Alumina Product
Monocrystal (Single) Fused Alumina Product is produced from high purity Bayer Alumina.