The group of office envelopes is the wide category of standard envelopes mailny used to business, internal and courier corespondence. In our offer you can find letter envelopes daily used in every office. The office envelopes include also expandable envelopes, safe envelopes, RTG envelopes, bubble envelopes, courier pads and folic envelopes. The high quality envelopes have different types of closing and gluing, formats and materials of which are made. Office envelopes are mostly used by companies to business correspondence and institutions ( hospitals etc.) to keep and place on file documets or medical documentation.