Base steel tube and steel plate welding are available, and can also be made from cast iron.

底座可用钢管与钢板焊接，也可用铸铁制成。

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The utility model discloses an assembled plastic base steel ring which comprises a ring-shaped base made up of plastics.

本实用新型公开了一种组合式塑料座钢领。

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The results show that these cracks are caused by the inclusions of rare earth sulphur oxides and alumina distributing in mass in base steel for hot rolled wide strips.

结果表明：管坯裂纹是因热轧宽钢带基材中存在大量聚集分布的稀土硫氧化物和氧化铝夹杂所致。

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Given the high fixed cost base related to operating a steel mill, margins will also decline if a plant is not operated at optimal capacity.

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Seeking to grow its energy base, Thailand has recently ordered the steel to build a third major gas pipeline, which in time would trigger development of 2 trillion cubic feet of undeveloped Unocal reserves.

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Though the seas are relatively calm, the waves are nevertheless too large for a safe mooring against the base of the structure to enable the BBC team to climb the 17m steel ladders up to the service deck.

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