The Mettalic yarn is top quality, it is of strong acid resistance & alkali resistance. With competive price and good ... quality, it is of strong acid resistance & alkali resistance. With competive price and good serviceSpecifications:1. Yarn type: M type, mettalic film yarn2 ... , 15, 25, 35, 50 micron;4. Features: this type of lurex film yarn is of high acid resistance, and also alkali resistance;5 ...