Yeah that's how I feel. Takes a good amount of heat to melt lol. Although brass is very soft and breaks easily
Brass fittings feature in my LPG plumbing. Brass threads and brass olives clamping down on brass tubes. I don't enjoy working with them.
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It looks like it's the rubber lined clips supporting the filter but the filter is securely bolted from behind to the alloy plate. The clips are there as tethers in case the olives slip. Wont stop a leak but will prevent the pipe coming out completely and engulfing the engine bay directly above the distributor.