国产福利不卡一区二区三区,我趁老师睡着了伸进她内裤,强行剥开两边虐花蒂玩弄,欧美性猛交xxxxx免费看

單層、少層、多層等需求定制； 尺寸：10*5cm 基底：銅基

Specifications: Close to complete coverage (90-95%), with some minor holes Average Thickness of BN film is 13 nm Thickness of the copper foil is 20 microns Quality is confirmed by TEM. TEM shows p

Single Layer CVD hexagonal Boron Nitride Film on 285 nm SiO2/Si substrates (p-doped), 1cmx1cm: 8 pack Properties of BN film 97% coverage with minor holes and organic residues High Crystalline Quali

Single layer h-BN (Boron Nitride) film grown in copper foil. h-BN is an insulator with a direct band gap of 5.97 eV. Due to its strong covalent sp2 bonds in the plane, the in-plane mechanical strengt

Single Layer CVD hexagonal Boron Nitride Film on 285 nm SiO2/Si substrates (p-doped), 1cmx1cm: 4 pack Properties of BN film 97% coverage with minor holes and organic residues High Crystalline Quali

Our h-BN crystals reach at most to 2mm in size and are considered as gold standard in 2D materials field. h-BN flakes are produced defect free which is the only commercial h-BN flake used as 2D