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發(fā)布時間: 2015-9-23 08:20
正文摘要:Introduction This booklet has been written as an introduction to and a source of general information on pipe joints. The flanged joint appears deceptively simple but in fact the science of flanges ... |
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剛過完國慶節(jié),又發(fā)福利了,這些資料都很有幫助,下載了 |
加油吧,入秋時不我待,煩忙的一周!!! |
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