["관건",,",""이 뭐什么意思？还有就是DN55的管子SCH16的壁厚8.5mm达不到8.8mm的意思就是非标管件，该怎么购买呢",,"비표준인 경우 가공공장에서 만들어 주면 됩니다. 설계도면만 주세요"III"이 뭐什么意思？？",I"GB11245那个标准里边就分了I系列和II系列两个系列的外径不一样。8.8mm的壁厚采购也没问题报给厂家就行"II"외径不一样原来如此我去看看标准看看"]

2017-02-13View Original

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例如等径三通DN50*50*50-Ⅰ-8.8-GB12459（Ⅰ），中两个“Ⅰ”是什么意思？还有就是DN50的管子SCH160的壁厚8.5mm，达不到8.8mm，意思就是非标管件，该怎么购买呢

Reply #22017-02-13

非标的话让加工厂做呗，给图纸就行

Reply #32017-02-13

前面一个问题呢？Ⅰ或者Ⅱ什么意思？

Reply #42017-02-13

看下GB12459那个标准就知道了，标准里面分了I系列和II系列两个系列的外径不一样。8.8mm的壁厚采购也没问题报的厂家去就行

Reply #52017-02-13

原来是外径不一样，我去找标准看看

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