... syetems .we can solve the following common problems of PLC:1 ,when the temperature is high ,driving ... ,advantages of cost :about 1/4 of the same germany coating processing line ,and 1/2 of other chinese glass factories ... . 8,advantages of products:1,our Low-e glass ... can also be tempered .2,the tempered piece of low-e glass can last 3 months in ...