There are 3 different types of sewing threads for sewing various clothing trims or accessories: natural fiber, synthetic fiber, and mixed sewing thread.
A spool of 3000 yards of polyester sewing thread is used for all kinds of knitted fabrics, shirts, ties, raincoats, swimwear, sportswear, gloves, etc.
Sewing Thread Spools
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Sewing Thread Sizes
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Sewing Thread Types