... 2011 3 F/R caliper brake 4 steel frame 12" child bike PARTSpecification and matericalBrandHuadiFramesteel , argon-arc welding,ED , CP or paintingcertificateISO ... cover, or 9-form chain cover or to your orderChain wheel ED, CP, Electroplating roulette 24T, 28T, 32T ,36T ,40T, 42T ...