But Never be dismayed by this alphabet soup. Only a few varieties are in everyday use. Also, manufacturers tend to avoid these overly geeky monikers in favor of much more descriptive names alluding to an essential quality on the filament, such as flexibility (NinjaTek's Ninjaflex and Polymaker's Polyflex, For illustration) https://dallasghfca.blogmazing.com/32319568/the-best-side-of-esun-abs-filament