... .higher accuracy 3.Cut,drill,grind,polished,tempered 4.flat and curved 5.full closed wood crate 5.full closed wood ... , made of normal glass that is heated to intenerate, and then condensed quickly by cold wind to as times strength as before ... door, curtain wall of building, indoor partition, elevator, showcase, door and window of building etc. Specification: Thickness: 3mm-19mm Max Size ...