I want to know whether all your products are made in UK
The Raspberry Pi 2 I got from Element 14 says "made in the UK' along the edge in small letters on the green PCB...
According to this blog post, some are made in China and some in England. https://forums.adafruit.com/viewtopic.php?f=19&t=68725
A quick piece of advice, posting this as a question in the raspberry pi area may be a better place for things like this.
