Shenhai Kuputika-Uchapupu
Waterproof asphalt coatings, yakatorwa kubva mupetroleum, inoumbwa ne-non-volatile, high-molecular hydrocarbons.
Kunyanya patembiricha dzakakwirira, machira aya anoburitsa utsi hunokuvadza kubva kune zvinokuvadza mukati measphalt, zvinokanganisa zvakanyanya kunaka kwemweya wemukati.