铸铁管用于给水、排水和煤气输送管线，它包括铸铁直管和管件。
The cast iron pipe is used for water supply, drainage and gas transmission pipeline.
本文介绍了各类环保给水塑料管的连接件种类、连接方式与原理、连接主要方法及要求。
This paper introduces some joints joint manner & principle, joint methods and demand of feedwater plastic tube for protecting condition.
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。
It introduces the structure, performance, material, appliance scope and implementing standard of lining plastic to supplying water pipe and fittings.
应用推荐