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Numbers on the back of my slabs??12030

Collector TheJokersWild87 private msg quote post Address this user
Im wondering what these raised numbers are on the back of all my cbcs slabs?
They seem to be on the inner sleeves...
Do they have any meaning?

In scratching my head for weeks
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Collector GAC private msg quote post Address this user
Don't know for sure but I'd guess it's a slab manufacturing identifier.
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Collector TheJokersWild87 private msg quote post Address this user
That's what I thought but the numbers are so random from slab to slab I wasnt sure
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Beaten by boat oars Studley_Dudley private msg quote post Address this user
Batch identifiers for the slabs?
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Collector GrailComics private msg quote post Address this user
Interesting never noticed that either.
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Collector HulkSmash private msg quote post Address this user
Quote:
Originally Posted by Studley_Dudley
Batch identifiers for the slabs?
Quote:
Originally Posted by GAC
Don't know for sure but I'd guess it's a slab manufacturing identifier.

^^^^Most likely ^^^^


OR🤔

Post 6 IP   flag post
Collector CarsonG private msg quote post Address this user
My family has worked with plastic manufacturing in the past, these are most certainly batch numbers the manufacturer stamps on the products. My family's company today stamps our steel products this exact same way.
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Collector Darkseid_of_town private msg quote post Address this user
They look like recycling codes to me
Post 8 IP   flag post
CBCS Pressing SteveRicketts private msg quote post Address this user
The number is the code for the size of the inner well. Over the years we have used 21 different sizes. A few of them have been retired because they were used so infrequently, or we have created new well size that worked better.
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Collector Scifinator private msg quote post Address this user
“WELL”,that explains it! I had been wondering the same thing, but never thought to ask.
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341195 10 10
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