How to distinguish special yarns

As long as the following six conditions are met, they are all "special yarn" threads, ropes, cables, and cables.

1. Silk or spun silk yarn with fineness above 20,000 dtex;

2. Chemical fiber yarn (including the yarn spun from two or more monofilaments in Chapter 54), with a fineness of 10,000 dtex or more;

3. Hemp or linen yarn:
(1) For glazing or glazing, the fineness is 1429 dtex and above;
(2) If it is not polished or polished, the fineness is more than 20,000 dtex;

4. Three or more strands of coconut shell fiber yarn;

5. Other plant fiber yarns with fineness above 20,000 dtex;

6. Yarn reinforced with metal thread.