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80×40×20×2.5	3.925	180×60×20×3	8.007
80×40×20×3	4.71	180×70×20×2.5	7.065
100×50×20×2.5	4.71	180×70×20×3	8.478
100×50×20×3	5.652	200×50×20×2.5	6.673
120×50×20×2.5	5.103	200×50×20×3	8.007
120×50×20×3	6.123	200×60×20×2.5	7.065
120×60×20×2.5	5.495	200×60×20×3	8.478
120×60×20×3	6.594	200×70×20×2.5	7.458
120×70×20×2.5	5.888	200×70×20×3	8.949
120×70×20×3	7.065	220×60×20×2.5	7.4567
140×50×20×2.5	5.495	220×60×20×3	8.949
140×50×20×3	6.594	220×70×20×2.5	7.85
160×50×20×2.5	5.888	220×70×20×3	9.42
160×50×20×3	7.065	250×75×20×2.5	8.634
160×60×20×2.5	6.28	250×75×20×3	10.362
160×60×20×3	7.536	280×80×20×2.5	9.42
160×70×20×2.5	6.673	280×80×20×3	11.304
160×70×20×3	8.007	300×80×20×2.5	9.813
180×50×20×2.5	6.28	300×80×20×3	11.775
180×50×20×3	7.536	??	??
180×60×20×2.5	6.673	??	??

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