1. A halogen element, f, is major raw materials deriving fluorine compound , and because of low melting point, that is widely used in steelmaking, nonferrous metal smelting, cement, glass and ceramics. 萤石中含有卤族元素氟，是制取含氟化合物的主要原料，又由于熔点低而广泛用于炼钢、有色金属冶炼、水泥、玻璃、陶瓷。 来自互联网
2. The formula study and properties of the low smoke and low halogen (LSLH) flame retardant PVC sheathing compound were introduced. 介绍了低烟、低卤PVC阻燃护套料的配方研制过程及配方性能； 来自互联网
3. But in 1974 scientists found that the halogen -alkyl compound is the main factor of those can lead to the Ozone cavity. 但是，1974年科学家发现，卤代烷化合物是造成臭氧空洞形成的重要原因。 来自互联网
4. Now, JLS has invented the environment friendly low-smoke halogen -free compound for cable to meet the customers' demands. 现在我公司又全新推出了环保型低烟无卤电缆料满足客户的需求。 来自互联网
5. Now, JLS has invented the environment friendly low-smoke halogen -free compound for cable to meet the customers' demands. 现在我公司又全新推出了环保型低烟无卤电缆料满足客户的需求。 来自互联网
