Sapphire dial with holes and scale
printing, these
crystals are widely used for watch dials. Usually our tolerance for
this model is +/-0.03mm for diameter, +/-0.05mm for
thickness.
This kind of perfect optical sapphire
crystals have excellent transparency in wide spectrum , high
hardness (about Mohs 9) , the chemical purity is so far as to
99.995%, and precise orientation of optical axes
.
Any
customized shape and size is welcome, we will produce it strictly
according to the technical drawing from
customers.
联系我们
联系人: Simon
公司名称:HongKong Bright Sapphire Co., Limited
办公地址:longgang industry zone, Shenzhen, Guangdong, China,518116