发布时间:2025-01-19 11:03:20
1.常用水管尺寸以DN为规格,分别是DN15=4公分、DN20=6公分、DN25=1寸、DN32=1寸2、DN40=1.5寸、DN50=2寸、DN65=2.5寸、DN80=3寸、DN100=4寸、DN125=5寸、DN150=6寸、DN200=8寸、DN250=10寸。
亲求天正建筑85字体库 我用的天正85 cad2008 求字库 谢谢
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