| 释义 |
- 1
It introduces the structure, performance, material, appliance scope and implementing standard of lining plastic to supplying water pipe and fittings. 介绍了衬塑给水管件的结构、性能、材质、应用范围和执行标准。 - 2
Then, the divide standard of damage grade and the enduring fire limit time of the tunnel lining caused by fire accident are discussed. 在此基础上提出了隧道衬砌火灾损伤等级的划分标准与耐火极限时间。 - 3
Standard bricks, shaped bricks adapted to chemical plants, fertilizer plants, sulfuric acid plant and other factories drying tower, absorption tower and the reactor lining. 标准砖、异型砖适应于化工厂、化肥厂、硫酸厂等厂家干燥塔，吸收塔及反应器的内衬。
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