killer007 发表于 2017-8-30 13:00:09

BS EN 1638-1997 Plastics piping systems — Glass-reinforced thermosetting plast

BS EN 1638-1997 Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Test method for the effects of cyclic internal pressure




admin 发表于 2017-8-30 19:21:30

谢谢您的分享,金币已奖励!
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