... glass in the vacuum chamber, and then coated with two layers of waterproof protective paint. DingTang ... Aluminum mirror is with less aluminum dot, less black dot, no ... : 1) Supply all kinds of aluminum mirror and silver mirror 2) Thickness from 1.5mm - 4mm 3 ... 1830x2440mm ( aluminum mirror ), 2,440 x 3,300 ( silver mirror ) 4) made of non-wave quality float glass ...