Sintered or extruded bases on Madshus Fjelltech & Panorama?

[Xixi]

Hi, wanting to know if the ptex on the bases of the Fjelltech and Panorama models are extruded or sintered. Only thing mentioned on the Madshus site that I can find about the bases are that they’re “fluor free”. For the price point they’re at, I’m guessing extruded, but wanted to check. Thanks!