I’m responding to the thread about buying rubbish.
My first picture shows one end of a blade straight from the packet.

What is not so clear is that –
The pin visible in the picture was about to drop out.
There was no pin in the other end of the blade.
The blade was bent in two directions, probably due to packaging constraints.
Judging from the smell and the dirty brown colour, I suspect that the oil protecting the blades from rusting was used engine oil.
My second picture.
This shows a section of a new `Super . . .’ blade photographed towards its centre, which is more to the right of the picture.
In discussing a replacement, the suppliers email quotes ” . . . our `Super . . .’ brand which is more premium . . .”
As you can see, the tooth profile is totally useless. In fact when compared with the first blades, their `Super . . . ‘ blades are even softer. Having disappeared almost completely, the condition of the teeth is quite obvious.
What is really disappointing however, is that the teeth deteriorated after only 15-20 seconds of use while trying to cut MS (mild steel).
My third picture.
This is a picture of the blade I almost threw away. It was re-installed into the saw and was used to finish cutting the mild steel mentioned above.
You may ask “What is so special about the original blade?” I can assure you that it has been used for hours of sawing, and would be at least 30 years old!!!
Sam