JUS G C1 300-1982 Plastics Polyetilene for pipes and fittings Clasification and quality requirement《塑料 管道和配件用聚乙烯 分类和质量要求》.pdf

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JIS K7034-2003 塑料管道系统.玻璃纤维增强热固性塑料(GRP)管道和配件.在偏移条件下内截面耐化学侵蚀的测定.pdf

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