... size of 2900*4500mm2, we introduce the anvanced coating glass techonology of VON-ARDENNED.3, this line takes ... the key parts .3,during spraying the glass ,when the glass is broken ,it can not clean the ... 4 of the same germany coating processing line ,and 1/2 of other chinese glass factories . 8,advantages of ... tempered .2,the tempered piece of low-e glass can last 3 months in the normal environment ...