wecywp 发表于 2015-9-15 18:19:51

API STD 617 2014

API STD 617 2014Axial and Centrifugal Compressors and Expander-compressors EIGHTH EDITION



admin 发表于 2015-9-16 15:33:13

谢谢您的分享,金币已奖励!

dodoren 发表于 2016-12-21 09:36:44

获取的金币还真难,弄了点,一摇奖就都被扣掉了,够损,摇奖还有负的,真特么有才

yinwd672040 发表于 2022-7-19 07:47:10

谢谢分享!!!!!!!!!!!!
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