Glass fibre reinforced plastic mortar pipe(Centrifugal casting process)is introduced to be as jacking pipe material used in the design and construction of one jack engineering project.
玻璃纤维增强塑料夹砂管（离心浇铸工艺）作为顶管管材运用于顶管工程中的设计、施工介绍。
2
Animal control officers in Boise, Idaho took suitable action when they heard about a Jack Russell terrier caught in a tight spot, like a drainage pipe for some 19 hours.