Frame: steel,co2 welding,MTB painting
Fork:steel and painting,co2 welding
Handlebar: steel CP
Tyre/Tube: air tube or EVA(lower)
Rim: steel CP
Pedal: without ball,plastic,with reflector
Mudguard:steel painting
Saddle: common, leather
Crank:BK
Attachments: plastic basket and tool box,training wheel
Packing size: one 40HQ
12" 74*18*33 1550sets
16" 90*43*19 1000sets
20 " 107*19*50 670sets