I played with this Rubber. Its the hardest Rubber on earth. It's much harder than turbo orange or anything else. I would say it's 60 on euro and 43 on chinese scale.
The rubber is amazing. You don't need booster. It's like a h3 41 degree blue sponge boosted. But it's ridiculous heavy. 2,0 mm is 63 grams cut on a butterfly blade. You need a light blade with ca. 80 grams to use this rubber.