哪几家公司可加工50*50MM，厚0.12MM的宝石薄片?

请问国内哪几家公司可加工超薄宝石片?
具体指标:尺寸50*50,厚0.12+/-0.02的薄片,光洁度数20-10,平面度15μm.

这个很难

why so thin? Can you tell me the application!perhaps I can tell you about the processor or manufacturer.The min thickness can up to 0.10mm,specially up to 0.07mm.But the size is not so long at length.At fact,the price is main thing for this procession.another,it requires two or one surfaces polishing? Generally, for so large size thin slice, the flatness control is difficult.If you require large quantity (the total Qty100PCS),I can help you!