销售： NT$27,143.26
a) Check the sapphire to be sure that it has no cracks or chips. Any fractures will require replacement of the sapphire assembly. b) Check the cleanliness of the polished face by viewing light reflected from its surface. Flush the face with acetone (CP grade recommended) and wipe off any film or grease. Be sure that no particles remain on the sapphire when ready for re-assembly. |
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