Refrigeration Code Symbols

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題 1 of 1

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0
137404
0
240
block

Name the symbol

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137405
0
300
none
137406
0
300
none
137407
0
240
none
137408
0
240
none
137409
0
300
none
137410
0
300
none
137411
0
300
none
137412
0
300
none