2020
絲扣管件對(duì)應(yīng)的尺寸換算如下：
1分=DN6=1/8
2分=DN8=1/4
3分=DN10=3/8
4分=DN15=1/2
6分=DN20=3/4
1寸=DN25
1.2寸=DN32=1-1/4
1.5寸=DN40=1-1/2
2寸=DN50
3寸=DN65=2-1/2
4寸=DN100
