求翻译：零件长度5000mm 折弯尺寸会出现误差，导致中间尺寸180mm尺寸由于前面折弯尺寸30mm和40mm尺寸误差比较大，中间尺寸折弯完成后180mm误差±1.5-2mm左右。角度更没有办法保证。是什么意思？

Parts length 5000mm bending size errors, leading to intermediate size 180mm size the front bend size 30mm and 40mm size error is relatively large, middle size bending completed 180mm of error of ± 1.5-2mm. Angle no way guaranteed.

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The components length 5000mm knee bend size can appear the error, causes the intermediate size 180mm size because front bends at the knees size 30mm and the 40mm size error quite is big, after the intermediate size knee bend completes the 180mm error ±1.5-2mm about.The angle does not have the means

Part length 5000mm bend dimensions errors can occur, resulting in intermediate dimensions 180mm dimensions from the previous bend dimensions and 30mm relatively large size error, middle size bend around ± 1.5-2mm 180mm error after completion. Angle there is no way to guarantee.

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