Spherical Thrust Roller Bearing
Spherical Thrust Roller Bearing
PRODUCT
Large bearing type
by：Waxing
2020-11-17
In addition to the subway tunnel, as well as communication, electric power cable tunnel, municipal, underground water culvert, oil and gas pipelines also need of shield machine, especially in recent years, the heavy rain brings to the major cities of flood disaster, the Chinese government has realized that Chinese urban municipal drainage pipeline of the weak, in the next 5 ~ 8 years, used in the municipal drainage pipeline construction of 3.5 ~ 4.5 m small shield machine will become the market hot spots.
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