A SIMPLE KEY FOR OVAL CONDUITS UNVEILED

a number of factors im wonderingn are To start with is there anything at all Incorrect with just about anything ive claimed and in addition what cables will match down a flat 20mm conduit? im guessing I would like 25mm drops to the 2 2.5mm twins for the ringsHappyHippyDad mentioned: I realise the OP is not chasing, so apologies for not sticking for