用誠懇同禮貌的語氣根據以下的內容寫一封英文信多謝貴公司對本公司情況的諒解及跟業主多番的協商 根據之前溝通內容 本公司願意再提供一份本公司製造的一小時防火門但不包括原有門框的合格證書 本着為了盡力協助客戶解決問題的宗旨 本公司這次將不收取費用 但貴公司須清楚確認本公司在今次提出消防門的合格證書後 將不會在同樣問題再追究本公司任何責任 即使物業業主在收到合格證明書以外 有其他進一步要求 亦都不會牽涉公

Dear Sir/Madam,

Thank you for your understanding and multiple negotiations with our company regarding our situation.

According to our previous communication, our company is willing to provide a certification of qualification for our manufactured one-hour fire door (excluding the original door frame). In order to assist our customers to the best of our ability, we will not charge any fees this time.

However, your company must clearly confirm that after our company provides the certification of the fire door this time, we will not be held responsible for any related issues. Even if the property owner has further requests after receiving the certification, it will not involve our company's responsibility. Therefore, our company will only provide a valid and standard certification of qualification for the fire door this time. The certification is for the fire door installed by our company in the old office of your company located at Unit G, 14/F, Tower B, World Tech Centre, but does not include the original door frame.

If the fire door continues to be used in violation of regulations, all risks and responsibilities will be borne by the user and owner. Our company will not assume any responsibility in any capacity.

Once your company confirms, our company will issue the relevant certification immediately, which means that the property owner has been notified by your company and understands the above terms.

Thank you for your attention and cooperation.

Sincerely, [Your Name