Gelatin for Yogurt is extracted from collagen and is a high molecular weight protein composed of 18 amino acids. Bovine hide , bones and fish scales are normally used for the production of the gelatin.Gelatin can absorb 5-10 minutes of water and if heated
Pure tungsten Sheet The preparation method of tungsten sheet is to first press the tungsten powder by isostatic pressing and then sinter it at high temperature to prepare tungsten slab, and then roll the tungsten slab by rolling mill. The tungsten sheet a