Petroleum product, phosphoric oxied, phosphopric acid, boric acid, inorganic acid, metallic inorganic oxide, active carbon, radiative chemical element and radiative isotope

• 石油化工上下游产品、五氧化二磷、磷酸、硼酸、无机酸、金属无机氧化物、活性碳、放射性化学原素及放射性同位素