Fire. Asbestos sealing strips round door.
Old 4-corner bent model. See also Thomas Withers Security entry above.
Asbestos sealing strips round door
Subject: Implementation of PD 6662: 2017 and Alarm Transmission Systems (ATS)
Posted 10th January, 2020
DATE: Monday 28th September, 2020
TIME: 4pm LOCATION: Virtual online meeting