Usado sme en Shanghái, China

Prepared Slides

Nombre: Modelo | 1.cotton fibers: 1H-10 | 2.nylon fibers: 1H-18 | 3.corn starch: 1H-27 | 4.salt crystal: 1H-37 | 5.wool fibers: 1H-14 | 6.silk fibers: 1H-9 | 7.stem of pumpkin cs: 2H-154 | 8.legs of honeybee: 3H-...