发布时间:2025-01-31 22:14:28
没有计算公式,因各钢厂生产的花纹板所执行的标准不同,所以其单位重量也不尽相同,要根据其纹高和花纹密度来计算理论重量,花纹板通常有两种;菱形和扁豆型,按执行标准来分,有国标(GB)和冶金部(YB)标准,我这里有一个冶金部标准的花纹板理论重量表,希望能对你有所帮助
;需要请再追问。
南京吉隆300t熔接机突然不放电做电极校正也不放电是什么原因要怎么处理
2025-01-31 22:14:28 2025-01-31 22:14:28 2025-01-31 22:14:28 2025-01-31 22:14:28 2025-01-31 22:14:28 2025-01-31 22:14:28 2025-01-31 22:14:28 2025-01-31 22:14:28 2025-01-31 22:14:28 2025-01-31 22:14:28 2025-01-31 22:14:28 2025-01-31 22:14:28 2025-01-31 22:14:28 2025-01-31 22:14:28 2025-01-31 22:14:28配电里面有一排的单p空开上面有一排白色连接的进线口那个东西叫什么
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