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Quick Details Place of Origin:Dongguan,China(Mainland) Model Number:BB109 Brand Name:JXTC OEM: Avaliable Specifications Product parameter on adjustable bicycle bottom bracket BB109 rotator:sealed bearing. shell:68,70,73mm all can use by adjust the rings 1.37*24T material:alloy aluminum net...
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Jiang Xin Technology Co., LTD
We have full automatic production system and core technology from Japan.