killer007 发表于 2017-12-1 14:04:09

PD ISO TS 12512-2017 Glass reinforced thermosetting plastic (GRP) pipes — Dete

PD ISO TS 12512-2017 Glass reinforced thermosetting plastic (GRP) pipes — Determination of initial specific ring stiffness using segment test species cut from a pipe




admin 发表于 2017-12-3 21:21:47

谢谢您的分享，金币已奖励!
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