A Jacquard mechanism imported separately is classified under subheading 844811 as auxiliary machinery for weaving machines, not as a part of the loom. The heading explicitly covers Jacquards and dobbies as auxiliary machines in their own right.

No. Sewing-machine needles have their own dedicated subheading under heading 8452. Subheading 844851 covers needles specifically for knitting machines (stitch-forming articles). Always confirm the end-use machine type before classifying needles, as the distinction affects the applicable tariff line.