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Are 64#, 3# and 18# standard terms? |
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They were supposed to be, but then several different materials appeared under the name 18# and then there was 64B and 64C, so the numeric descriptions all became meaningless in 2003. From the beginning, CoolPiece used these numeric names to cut through the confusion of made-up names for materials, but now the numeric names for materials have been made ambiguous, especially 18# which is now used to describe wildly different materials.
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