We have the manufacturing capability of producing optical glass balls with diameter from 0.7mm to 80mm, maximum tolerance 0.003mm and surface quality 10-5 scratch and dig.
The high precision micro-balls are used in fiber-optic communications. And now, we can produce two million (2,000,000) uncoated ball lenses per month which diameter from 0.7 mm to 8.0 mm for optical telecommunication industry.