资讯动态
抽样的最少基数和抽样数_阀门标准
|
公称尺寸
DN
|
最少基数
台
|
抽样数
台
|
|
≤100
|
15
|
3
|
|
＞100～250
|
10
|
2
|
|
＞250
|
5
|
1
|
安博体育网页版-安博(中国)
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