U lock:
Materail: hardend #45 steel padlock with chromed plated, brass cylinder, 3 brass normal keys, color box packing
Size: 12*45,12*70,14*45,14*70,16*45,16*70
hardend A3 steel shackle with chromed plated
MOQ: 3000pcs for each size
Term of payment: T/T , L/C at sight