... request. Main specifications are: 21s, 33s, 45s, 80s, etc. 2. fiberglass toned yarnIt is mainly used on plastic toning and construction ... .Short-whittling yarn: 6mm, 12mm, 24mm, etc. 3. fiberglass expanding yarnIt is made by the special process of expanding and it is ... weaving yarn, and is mainly used to weave kinds of fiberglass fabric. The frondoes quantity of twisting could be processed according ...