8448 Auxiliary machines for machines listed in heading 84.44, 84.45, 84.46, or 84.47 (such as multi arm machines, jacquard machines, self stopping devices, and shuttle changing devices); Parts and accessories specifically or primarily used for machines listed in heading 84.44, 84.45, 84.46, or 84.47 (e.g. spindles, spindle shells, wire mesh, combs, spinnerets, shuttles, healds, heald frames, knitting machine needles): HS code chinese tariffs