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。
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；
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。
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。
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。
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