A bad and misleading Hail Test. Without thick glasses, up to 3.2 mm, and up to 50 mm balls. We can't buy if you don't test glass glass 4mm+4mm until it breaks. Enough cost savings. From 3.2mm up is fully tempered glass according to the glass industry. Your 2.5 and 2.8mm are thermally treated glasses, it doesn't work.
A bad and misleading Hail Test. Without thick glasses, up to 3.2 mm, and up to 50 mm balls.
We can't buy
if you don't test glass glass 4mm+4mm until it breaks.
Enough cost savings.
From 3.2mm up is fully tempered glass according to the glass industry. Your 2.5 and 2.8mm are thermally treated glasses, it doesn't work.