å½é é«ç©ºä½ä¸åä¼ - Ipaf
å½é é«ç©ºä½ä¸åä¼ - Ipaf
å½é é«ç©ºä½ä¸åä¼ - Ipaf
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Spreader Plate Ready Reckoner<br />
负 载 分 散 板 简 易 计 算 工 具<br />
http://www.ipaf.org/tools/r<br />
eady-reckoner/