2 inch sapphire substrate for calibration

{"cid":"91184473","title":"2-Inch C-Plane Sapphire Substrate for Process Development & Equipment Calibration","imgUrl":"https:\/\/img.chinax.com\/nimg\/5d\/47\/c018011964e9058cda85246c659b-200x200-1.jpg","attrs":{"Brand Name":"ZMSH","Minimum Order Quantity":"25pcs","Delivery Time":"2-4 Weeks","Place of Origin":"SHANGHAI,CHINA","Payment Terms":"T\/T","Material":"Single-Crystal Al\u2082O\u2083","Diameter":"50.8 mm","Orientation":"C-plane (0001)","Thickness":"430 \u00b5m \u00b1 25 \u00b5m","Surface Finish":"SSP","Bow":"<10 \u00b5m","Grade":"Dummy Grade"}}