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Those are the ones. Perhaps the ones that come from rare spares are stainless.which door belts are you talking about? are you talking about these ones? these are stainlessView attachment 209829
Some low grade stainless is magnetic. I was told this by an exhaust shop. My extractors are over 20 years old and still in excellent condition and are low grade stainless.there will be like a (what looks like a film come off when sanding), strange ive bought new old stock holden ones for mine and highly polished them (wet sand and machine buff on a drill) as they are almost 40 years old even new, shelf wear
you didnt have to cut it, just use a magnet, try a speaker or even a fridge magnet, if it stick then its tin, stainless is not magnetic
My bad, I was told a few years ago (maybe 10-15 years ago) by a few people to use a magnet to see if things are stainless steel, I’ve tried stainless tyre valve caps and stainless bolts and washers they were not magnetised so i believed it, and didn’t give it any more thought, but after this discussion I’ve tried my FX hubcap with a fridge magnet and it did stick but was not very strong magnetised sticking, very easily feel off, and as of rust stainless steel can rust in extreme conditions, my mum lived on the Gold Coast right on the canals and the stainless steel solar lights use to rust, I had the same stainless solar lights at my place near Bathurst, never had a speck of rust in 4 years, need marine grade stainless on the sea waters, rust marks can go onto anything, vh headlights are one example, have you ever seen the headlight bucket rust and the plastic surrounds gets rust colour baked into the plastic, the rust marks underneath the trim would be rust transfer from the clips that holds them onsteel as stainless is magnetic unless they have invented something new.
I thought the trims were a cast alloy like tin (hence the rust underneath) as in a tin can and then either anodised or chrome plated