soaps are made fron a fat or fatty acid and an alkali. they lathetr and produce a foam which entraps dirt and grease. there are many kinds of soaps. cleaners contain a solvent, such as naphtha, with or without a soap. abrasive cleaners are soap pastes containing powdered pumice, stone, ailica, etc.
配方组成:
water/1/2 gal ammonium phosphate/1 lb ammonium chloride/2 lb fireproofing canvas
配制方法:
impregnate with the solution; squeeze out the excess, anddry. wasting or exposure ro rain will remove fireproofing salts.
地址：山东省烟台市开发区南昌大街48号
