Muchina wepurasitiki ndiwo chidimbu chemichina yepurasitiki, michina yepurasitiki inogadzirwa nezvigadzirwa zvepurasitiki inoita basa rakakosha munzvimbo dzese dzepasi, sepolymer composite zvinhu "amai mechini" yebasa, indasitiri yemuchina wepurasitiki ine tarisiro yakakura yekusimudzira, iri mukati. ...
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