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J764 BBb，Help
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J764 BBb，Help
Posted:
Thu Feb 17, 2022 3:08 am
by
sanfordbwood
What are the specs of J764 BBb?
Re: J764 BBb，Help
Posted:
Thu Feb 17, 2022 7:03 am
by
bisontuba
4 piston valve, 6/4 BAT, 20" Bell, bore-.750/.787/.827