Safe operation and maintenance of horizontal directional drilling rig(Chinese Edition)

Descripción

Language:Chinese.Paperback.Pub Date:2021-11-01 Publisher:China Construction Industry Press The horizontal directional drilling rig using trenchless technology can lay new pipelines or replace old pipelines without excavation or less surface excavation. Compared with the traditional excavation method. it has the advantages of short construction period. low comprehensive cost. no impact on traffic. no damage to the environment. and no impact on the normal life of residents. Especially for pipel. N° de ref. del artículo NX002269

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