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- cnc hobbing 20 teeth 2gt timing pulley bore 4 5 6 8mm for gt2 open synchronous belt width 6mm 10mm small backlash 20teeth 20t
cnc hobbing 20 teeth 2gt timing pulley bore 4 5 6 8mm for gt2 open synchronous belt width 6mm 10mm small backlash 20teeth 20t