Lesson 4 Firestop HVAC Ducts

Firestop HVAC ducts training video.

[@curtishomeniuk1077]

I’m just starting as a fire stopper and love your videos very helpful

[@wowweerv13]

We’re you a fire stopper at

[@Swscrapmetal]

Very useful I'm a fire stopper and I find this expanding my knolage thanks

[@sardartariqmahmood8630]

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