楼主: lin512238259
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黄铜管材要穿在打孔的红铜法兰上,怎么焊接都不行---[求助] |
发表于 2008-6-9 00:27:07
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发表于 2008-6-9 09:22:56
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发表于 2008-6-9 11:50:44
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发表于 2008-6-11 16:50:47
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