... of 2900*4500mm2, we introduce the anvanced coating glass techonology of VON-ARDENNED.3, this line takes ... .3,during spraying the glass ,when the glass is broken ,it can not clean the broken glass .and our PLC systemis ... tempered .2,the tempered piece of low-e glass can last 3 months in the normal environment ... oxidated .3,after being tempered ,our low-e glass reflection and AB value will not change . Low ...