Cautions in the Use of Optical Fiber：
1，Fiber optic products are made of fused quartz and should be used with special care；
2，No twisting, severe bending and unnecessary sharp bending；
3，Do not pull or twist at the joint or end；
4，Do not place or drop heavy objects on optical fibers；
5，Support must always be provided at high quality joints or flanges；
6，The polishing surface of the end of the product must be well protected and not damaged; when not in use, it should be protected by coating. Dust, fingerprints, scratches, debris, etc. will quickly invalidate the product.
7，Cleaning: Use lens cloth/lens paper to dip in cleaning water to clean the surface of the end, and then use IPA to clean it.
8，Repair products: must be packed according to the original packaging at the time of receipt. Incorrect packing will lead to further damage to the product.
