Caustic Soda 1: Main Content: 96%, 98% and 99% 2: Flake, Pearl and Solid 3: 25kg Bag, 200kg Drum 1000kg Jumbo Bag ... smelting, refining tungsten, artificial silk, rayon and soap manufacturing, production of dyes, plastics, pharmaceutical and organic intermediates, the old rubber recycling, ... ----- 25kg / bag, the layers of two-woven bags inside and outside, in the middle layer of lining bag, a total ...