ruilinyan 发表于 2014-6-11 15:49:59

尋找JIS H 8620:1998

尋找JIS H 8620:1998 Electroplated coatings of gold and gold alloy for engineering purposes

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kkman 发表于 2014-6-11 15:50:00

http://bbs.infoeach.com/forum.php?mod=viewthread&tid=53036&page=1&extra=#pid157919

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