镀膜玻璃
6LTY120
...
6LETB170+12A+6C(LOW-E中空)
6LETS-139+12A+6C(LOW-E中空)
6LETS-150+12A+6C(LOW-E中空)
6LEN-1+12A+6C(LOW-E中空)
6LRTB-180