We, Satec Envir Engineering Pvt. Ltd. Supply, Fabrication, transportation, assembly & erection with reliable and cost effective solutions for Rail over bridges owing to our team of highly experienced Engineers.br br TYPES OF BRIDGE STRUCTURESbr br There are the following types of bridge structures.br br 1. Composite Steel Girdersbr 2. Semi Through Steel Girdersbr 3. Open Web Steel Girdersbr 4. Bow String Steel Girdersbr br Website : Email : enquiry@satec.co.