Kev ua haujlwm:Pipeline tso kev ua haujlwm hauv thaj chaw txias
Thaum lub sij hawm lub natural gas pipeline tso ua hauj lwm ntawm "4th bidding seem ntawm Blue Stream" nyob rau hauv Qaib Cov Txwv thaj chaw, plaub Shantui SP90Y pipelayers tau mas siv ib txhij los pab lub pob tw vuam ntawm pipelines.
