There isn't really much of a history of glassmaking in China, it never really took off, ceramics and porcelain were more the thing there. There are the odd bits around of very old chinese glass, in some museums, but not much.
It was the "invention" of glass in the western world that allowed science to develop into what it is.
Prisms for splitting light; clear vessels which could have the air inside them pumped out to create vacuums; lenses for seeing tiny things and for seeing the planets and the stars.
Science happened in the western world because of glass.
What would the world look like if science had been taking place, perhaps even earlier, in China rather than here?