coiled inner tube
... inner-tube core lifter 内管岩心卡取器 coiled inner tube 蛇形内管 inner tube reclaim 内胎再生橡胶 ...
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加快省煤器蛇形管排预组合，本周内完成省煤器和过热器接口100个。
Preassembly of economizer coils shall be expedited ; 100 nos . joints of eco. & SH shall be welded.
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