What ceramic fiberboard is more suitable for fireplace insulation?

I received an inquiry from Mr. Alan about 1000 * 500 * 30mm ceramic fiberboard in July and I replied Alan immediately after receiving his email.

Simond Store Ceramic Fiber Insulation Board, 2300F, 1/2 inch X 19.7 inch X 39.4 inch, Ceramic Thermal Insulation Board for Wood Stoves Fireplaces Furnaces Forges Kiln Pizza Oven

Stove Boards & Hearth Pads: The #1 Stove Board Dealer

Simond Store VZ4F Ceramic Fiber Board Insulation for Forge, Pizza Oven, and Kiln, 1 Piece - Harris Teeter

Ceramic Fiber Board High Density 2300F

China Fireplace Ceramic Fibre Board Manufacturers, Suppliers - Factory Direct Price - LUYANG

An overview of refractory ceramic fibers

Woodstove Fireplace Glass: Experts in Wood Stove Glass & Replacements

Simond Store Ceramic Fiber Insulation Board - 2300F Rated - 0.47 x 12 x 12 - Pack of 1 - Fireproof Refractory Ceramic Fiber Board for Stove Pizza Oven Furnace Kiln Fireplace Hearth Insulation

Fireboard - Fire Resistant and Insulation Board for Fireplace

Materials used to line fireboxes - a test

China Refractory Ceramic Fiber Board Manufacturers, Suppliers - Factory Direct Price - LUYANG

The advantages of selecting ceramic fiber boards as furnace lining

Kingspan XPS available in California at Foam Sales Group

Simond Store Ceramic Fiber Insulation Board - 2300F Rated - 0.47 x 12 x 12 - Pack of 1 - Fireproof Refractory Ceramic Fiber Board for Stove Pizza Oven Furnace Kiln Fireplace

Reliable and Woven fireplace insulation board