What are the classification of fire shutter? Fu Shi for his answer

Steel fire shutter

To do the curtain plate with steel materials, guide rail, a seat board, lintel, case,and with a door rolling machine and a control box which can meet therequirements of fire integrity of the shutter.

WFJ

Refers to the use of inorganic fiber curtain surface, with steel materials as a splint, guide rail, a seat board, lintel, case, and with a door rolling machine and a control box which can meet the requirements of fire integrity of the shutter.

Super fire shutter

Refers to the use of steel material or an inorganic fiber curtain surface, with steel materials as a guide rail, a seat board, plywood, lintel, case, and with a door rolling machine and a control box which can meet fire integrity, thermal insulation and anti rolling smoke performance requirements.