Plastic And So-Called Phenolic Carb Spacers

The pics I posted I believe are Allstar brand. I saw some other pics of a plastic type 1” with tapered 4-holes that was melted as well but can’t recall where I saw.
Yeah, I could see the star in the pic but couldn’t quite read the name.
Some companies must be using cheap stuff because hi-temp composites have been around a long time and some of them are very tough. I hope a lot of people chime in on this, I’d like to see the junk that melts exposed.