When you receive crystals from FOCTEK, please make sure that only qualified personnel are able to open inner packing at clean environment. Please prevent finger print, oil and other substances from adhering to the polished or coated surfaces. If the surfaces are contaminated, please blow the surfaces with air ball. If there is still pollution on the crystal surfaces, please clean the surfaces with cleaning liquid and soft silk. The mixing liquid of 50% high purity alcohol and 50% high purity ether is recommended as cleaning liquid. Please notify that the contaminated surfaces are very easy to be damaged. When polished surfaces are fogged or damaged, please ask FOCTEK for repolishing and coating service.
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When you receive crystals from FOCTEK, please make sure that only qualified personnel are able to open inner packing at clean environment. Please prevent finger print, oil and other substances from adhering to the polished or coated surfaces.
If the surfaces are contaminated, please blow the surfaces with air ball. If there is still pollution on the crystal surfaces, please clean the surfaces with cleaning liquid and soft silk. The mixing liquid of 50% high purity alcohol and 50% high purity ether is recommended as cleaning liquid. Please notify that the contaminated surfaces are very easy to be damaged. When polished surfaces are fogged or damaged, please ask FOCTEK for repolishing and coating service.
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