... bundles called plies. Two or more plies are then twisted together to produce a thread of the desired size. Many different finishes (such as hot wax, silicone, and silicone-free) may be applied to spun polyester ...
... bundles called plies. Two or more plies are then twisted together to produce a thread of the desired size. Many different finishes (such as hot wax, silicone, and silicone-free) may be applied to spun polyester ... more
