成人欧美一区二区三区白人/男帮女下面囗交有危害吗/波兰大白屁股xxxxx/aaa欧美 - 国产第九页

Compatibility with fabric characteristics: Nylon long silk thread must be made from the same or similar raw materials as the fabric to ensure consistency in shrinkage, heat resistance, wear resistance, durability, etc., and to avoid appearance wrinkles caused by differences between threads and fabrics.

Consistent with the type of clothing: For special purpose clothing, special functional sewing threads should be considered, such as elastic sewing threads for elastic clothing and heat-resistant, flame-retardant, and waterproof sewing threads for firefighting clothing.

Coordinate with the stitch pattern: The stitches used in different parts of the garment are different, and the nylon sewing thread should also be changed accordingly.