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:
paraffin wax/10 oz china-wood oil/10 oz kerosene/2 1/2 fal fatty acids/10 oz waterproofing cement
配制方法:
stir until dissolved. paint or spray on cement walls, which must be dry.
地址：山东省烟台市开发区南昌大街48号
