银钎焊法：将焊线或焊杆点在阀门里的管道套座上。

Silver brazing Method: Apply brazing wire or rod at point where tube enters valve socket.

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欧洲焊碳管市场或将脱离当前的极度低迷状态。

Welded carbon market in Europe or from the current extremely low ebb.

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欧洲焊碳管市场或将脱离当前的极度低迷状态。

Welded carbon market in Europe or from the current extremely low ebb.

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