Dear Sir/Sirs/Madam

Dear Sirs, We introduce ourselves as the biggest importer of toys in London.

Dear Sirs: Firstly thank you for your continuous supports in the past years, we wish both business snow balling in the coming years.

Dear Sirs, Replying to yours of the 10th inst. , we inform you that we have no special knowledge as to the credit standing of XXX Co.

Suddenly they saw a piece of paper on the wall. It said, "Dear sirs, there is something wrong with the lift. Please use the stairs now. "

Dear Sirs, We would like to inform you that the invoices detailed above and payable upon receipt are still outstanding to date.

Sometimes I get these mails that are like, 'Dear Sirs: I'm writing a dissertation on public health. Any suggestions?

Dear sirs, Despite our last two reminders, we still haven't received your payment regarding the above invoices.

Dear Sirs, We are very pleased to receive your enquiry of 15th January and enclose our price list, catalogue and cutting samples.

Dear Sirs, We would like to remind you that according to our contract, all invoices must be paid upon receipt.

It is also possible to use "Dear Sirs " when a partnership is addressed .

Dear Sirs, my name is AA, I'm the technical consultant of Asia Pacific.

Dear Sirs, With reference to our Order No. 315, we are compelled to express our strong complaints for the inferior quality .

Dear sirs, Your offer of 9 Feb received with thanks.