420d/3 Good Tensile Continuous Polyester Filament Thread

420d/3 Good Tensile Continuous Polyester Filament Thread   420d/3 Good Tensile Continuous Polyester Filament Thread is a type of thread made from polyester fibers.   This thread is known for its strength and durability, which is why it is often used in industries that require strong, long-lasting threads.   Here's what each part of the name means:  420d: This refers to the denier of the thread.   Denier is a unit of measure for the linear mass density of fibers.   It is defined as the mass in grams per 9000 meters of the fiber.   The higher the denier, the thicker the thread.   In this case, 420d means the thread is quite thick and strong.   /3: This indicates the number of strands or filaments that are twisted together to make the thread.   In this case, three strands are twisted together, which adds to the strength and durability of the thread.   Good Tensile: This means the thread has high…

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