jinchao1207 发表于 2017-2-28 10:58:48

DIN 16284-2004 Nipple connections for pressure gauges and their accessories

本帖最后由 xifeng1115 于 2017-3-3 19:46 编辑

悬赏求助 DIN 16284-2004 Nipple connections for pressure gauges and their accessories

weizhoucui 发表于 2017-2-28 10:58:49

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