发布时间:2025-02-02 09:28:51
圆管理重=(外径-壁厚)*壁厚*0.02466
如果上面的48是外径那么就是:
(48-2.5)*2.5*0.02466=2.805075
我家装修房子问问刮仿瓷到乳胶漆应该有那几道工序看看工人偷工减料没
2025-02-02 09:28:51 2025-02-02 09:28:51我是外地户口想在杭州买房没有社保没有纳税证明可以是全款有办法吗
2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51 2025-02-02 09:28:51