管式空气预热器制造技术条件(3)

2014最新

NB/T ××××—×××× 目 次

前言 ····························································································································································· II 1 范围·························································································································································· 1 2 规范性引用文件 ······································································································································ 1 3 技术条件 ·················································································································································· 1 4 制造和装配公差 ······································································································································ 2 5 检查和验收 ·············································································································································· 4 6 标志、油漆和包装 ··································································································································· 4 附录A（规范性附录）搪瓷管验收要求 ······································································································· 5

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