How to make Fire Rated Steel Door - DP2-1.5 Roll Forming Machine 

MODEL: DP2-1.5
Duplex C roll forming machine to produce steel door panel
Roll Forming machine consist two parts
1 - Duplex roll forming to form two sides ends for lower part of door panel.
2 - side roll forming to form the edge of the top part of the door panel
FOR MORE INFORMATION :
Free Number: 800-527672
Phone Number / WhatsApp: 0097165430053
Email: sales@larosagroup.com
Website: www.larosagroup...
For more information
Is a steel door fire rated?
Fire-Rated steel doors play a vital role in keeping people safe and minimizing property damage during a fire. ... Metal fire doors are an economical alternative to wood fire doors, when more than a 20 minute rating is required. Steel is the sole door material to deliver a 3 hour fire-rating.
Where is a fire rated door required?
A 3 hour door (180 min.) is typically required in 4 hour rated walls that separate buildings or divide a building into separate fire rated areas. 90 Minute doors (1-1/2 hr.) are required in 2 hour rated wall openings to stairwells, elevator rooms or egress through a building.