Please help me in profreead the chinese translation (attached original text in english) 翻译文章： 尊敬的先生 在贵司工程的最后阶段，关于文档管理部分，我们在此提供在整个项目执行阶段里的额外费用清单。 此额外费用是由两个重要因素引起。 因素一，钢材和混凝土的用量有所增加，因素二，在工程中，钢材和混凝土的价格有所上涨。 为了工程的进度不受到影响停止，我司作为建筑商承担了这些额外费用，因此也造成了对一些供应商的债务和我司一些费用。 因此，直到债务清偿为止，我们不能对此工程有所结案。 额外费用 混泥土 用量差异： 20 USD 价格差异： 10 USD 钢材 用量差异： 50 USD 价格差异： 29 UDS 差异合计: 109 USD 在此, 请您告知对我司的名义这些债务偿付的程序，我期待您的回复。 Original text: Dear Sr. Within the closing phase of your company, regarding to document management, please find the list of the additional costs incurred during the execution phase. Same that were generated due to two important causes. The first factor is related to the increase in the contractual volume of steel and concrete. And second, is related to the increase in the price of the same materials during the project. Since we did not want the project to be interrupted due to mentioned variants , we as builders absorb these cost overruns for the benefit of the work, which represents an important debt still with some suppliers and with our own expenses. These reasons we are unable to conclude the construction closure until the final debts are paid off. EXTRA COST OF THE PROJECT: CONCRETE Volume Difference: 20 USD Price Difference: 10 USD STEEL Volume Difference: 50 USD Price Differencel: 29 USD TOTAL DIFFERENCE: 109 USD I would like to ask you to advice us how to proceed to conclude these debts in favor of my company. I am looking forward to hearing from you.