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Silver brazing Method: Apply brazing wire or rod at point where tube enters valve socket.
银钎焊法：将焊线或焊杆点在阀门里的管道套座上。
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The connection of grounding wire should apply to the electrician standard.
地线的连接应符合电工规范。
youdao
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The connection of grounding wire should apply to the electrician standard.
地线的连接应符合电工规范。
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