Markets for glass, in Israel, in Roman times

YNet has the story:

"A first-of-its-kind accidental discovery of ancient glass kilns at the foot of Mt. Carmel demonstrates that Israel was at the center of the global glass trade during the late Roman period, the Israel Antiquities Authority announced on Monday.

"The extraordinary kilns, which are approximately 1,600 years old, are “the earliest found in Israel and the missing link for the production and export of glass,” Yael Gorin-Rosen, head curator of the Israel Antiquities Authority Glass Department, told Tazpit Press Service (TPS).
...
“The Valley of Acre was renowned for the excellent quality of sand located there, which was highly suitable for the manufacturing of glass” she explained. This glass traveled the ancient world, Gorin-Rosen said, noting that vessels made in Israel were “discovered at sites in Europe and in shipwrecks in the Mediterranean basin.”

“Now, for the first time, the kilns have been found where the raw material was manufactured,” Gorin-Rosen said.
...
"An edict issued by the Roman emperor Diocletian in the early fourth century CE, refers to two kinds of glass: Judean and Alexandrian. The Judean glass, originating from Israel, was a light green color and less expensive than its contemporary Egyptian, Alexandrian counterpart."