1) It can be a combination with GALLFOFD fire & acoustic seal on fire & smoke doors of BS EN1634-3.
2) The soft joint which between soft & rigid material are very strong, hardly to tear.
3) Excellent flexibility and resilience of soft wing .
4) Special design with soft joint of right angle .
5) Install two sides separately due to soft joint, make operation simple , fast and neat.
6) Automaticly adapt to the tolerance of the right angle to the door frame.