GB/T 20186.3-2023 Chinese PDF (GB/T20186.3-2023)GB T 20186. 3 2023_Chinese: Secondary coating materials used for optical fibre Part 3: Modified polycarbonate (Chinese: 3) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20186. 3 2023
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