killer007 发表于 2017-8-28 11:38:48

ISO 8521-2009 Plastics piping systems — Glass-reinforced thermosetting plastic

ISO 8521-2009 Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Test methods for the determination of the apparent initial circumferential tensile strength




admin 发表于 2017-8-28 13:56:33

谢谢您的分享,金币已奖励!
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