ITEM NAME:15 grams PYREX GLASS WOOLï ¼Å’64# Filtering Fiber Quartz wool Quartz fiber.Commonly used in chromatography columns, this fine filtering fiber is made of Pyrex borosilicate glass. (15 grams) 64# of Pyrex glass wool. Quartz wool. Strand breaking strength. Fine ,soft cotton. The following 12, temperature1700 degrees.
