The shell materials: Ferritic stainless steel SUS444, SUS441, SUS430 and austenitic stainless steel SUS304, SUS316.
.The core materials: Domestic FeCrAl (2073/216), import FeCrAl (1.4725/1.4767), copper and iron, etc.
.The foil thickness: 0.03-0.1 mm.
.The hole density: 100-900 CPSI.
.The braze welding: Nickel-based solder.
.Shape: Round, oval, racetrack, rectangle and other especial shape according to the design of client.