Service life is asbestine dish of the root multiple , need not safeguard for many times .

利用寿命是石棉盘根的数倍，无需多次保护。

A loyal heart maintains a blue sky -- write down cling to wei dongcai of vice secretary of party committee of city asbestine mine .

丹心撑起一片蓝天记巴州石棉矿党委副书记魏东才。