mica insulating pipe 云母绝缘管
prefabricated directly buried insulating pipe 预制直埋保温管
precast insulating pipe 预制保温管
precasting insulating pipe 预制保温管道
polyurethane insulating pipe 聚氨酯保温管
Three-layer insulating pipe 三层复合保温管
glass fiber insulating pipe 玻璃纤维类保温管
The characteristics of polyurethane foam used as insulating layer of prefabricated directly buried insulating pipe are introduced.
介绍了作为预制直埋保温管保温层的聚氨酯泡沫塑料的特性。
High strength prestressed heat barrier pipe is used as a thermal insulating pipe to carry high temperature and pressure vapour into underground for crude oil exploitation.
材质为高强钢的预应力隔热管是在石油开采中用于地下输送高温高压水蒸汽的绝热管。
By insulating flange at the junction between the new and old pipe, the long line galvanic cell is "broken up" - the anode (new pipe) is electrically separated from the cathode (old pipe).
在新、旧管子连接处安装绝缘法兰，破坏了长管道的原电池，即：阳极(新管子)和阴极(旧管子)间电断路。
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