... stress does not located on the glass surface as float glass, but on the central point ... of glass sheet.Certicate: quality as per AS/NZS 2208:1996(Australian standard) , grade A ... request of high mechenical strength and safety, such as glass door, curtain wall of building, indoor partition ... safety tempered glass pool fencing (8mm, 10mm,12mm)AS/NZS 2208:1996(Australian standard) , grade A ...