What are the characteristics of Angel's steamed bread improver? What are the benefits of using it?

How many kinds of steamed bread improvers does Angel Company have? The general feature is that it will soften steamed bread, increase steamed bread and make it taste better. I used angel's good friend steamed bread improver. I feel that after using 1), the steamed bread skin is smoother and does not collapse, and the steamed bread looks fuller, slightly larger and slightly white. 2) Steamed bread tastes soft and delicate, tastes delicious and feels like steamed bread made of high-grade flour. 3) The steamed bread skin is easy to smooth, which saves me more time and effort. 4) To make a bag of steamed bread noodles, you can add 2 kg of water.