Windows&Mirrors   PWT can use the traditional processing and double-sided polishing , two kinds of process technology to meet the needs of customers for different precision products, processing size range between 2-600mm, has been provided optical adhesive substrate and standard template for optical factories. At the same time according to customer needs, provide a variety of mirrors with coating.   Specification： Material： Dimensional tolerance： Surface flatness： Surface quality： Parallelism： Coating： H-K9L/Fused Silica/MgF2/CaF2/BaF2/Silicon/Ge etc. +0/-0.05mm 1/10λ~1/20λ@632.8nm 10-5 1'' Customization