Z&Z is the first brand of Super Polishing from China with roughness 0.1nm.

As the first brand of Super Polishing from China, Z&Z focus on developing ultra Precision optics with roughness 0.1nm in past 23 years. Besides high level roughness, we meet high Flatness λ/30, and S/D 5-0 at the same time. We are experienced on super polishing of fused silica, Silicon, Sapphire, CaF2, etc. We also produce over 1M high Precision customized optics from UV to IR annually with size from 4mm to 700mm. Different customized optics are available including mirror, wafer, spherical lens, prism, cylindrical lens. The material could be Fused silica, optical glass, Si, Ge, ZnS, ZnSe, WMS-15, CaF2, MgF2, BaF2, etc. 80% products export to reputed customers in US and EU. Our products are widely used in semiconductor, laser, infrared, aerospace, Large scientific device, etc.