I have a rectangular cross-section block 0.5m by 0.06m andof length 0.3m made of aluminiumI want to attach a round circular plate of metal of thickness 0.02m to one end of the block so that it passes thru the block and sits there.So I figure I need a cut-out from the plate with the shape of the rectangleBut I dont know how to attach themI dont want to weld
You can't weld aluminium to steel anyway.
it happens rarely but it happens forget it pay the pennies one time
No, it's not a scamApparently, you tried to mail something with insufficient postage (or something was sent to you with insufficient postage), and they're trying to be nice by sending it on and collecting after the fact
Your package weighed more than 1 ounce or it was oversizedFirst class postage only covers 1 ounce and certain sized envelopesYou will have to look on the postage website for the exact size covered by first class mailAnything over 1 ounce in weight, regardless of the envelope requires additional postageMany greeting cards for instance, require 2 first class stamps because they are heavier than one ounce Anything of an irregular size also needs more postage.
This means that something arrived Postage Due, which used to happen a lot more oftenIf the practice was new to you and you were suspicious, you did the right thing by going to the post office rather than just leaving the money in the boxBecause the person at the post office was able to give the payment directly to your carrier, you can now set you mind at easeIf it were a scam, the person at the post office would not be in on itMost likely, even your mail carrier would not be in on it(It's not easy to get a job as a mail carrierIt wouldn't be worth risking loss of the job and even prison time for a federal offense just to pick up a few pennies here and thereA scam would have been committed by someone else putting something into your mailbox and then retrieving your payment before the mail carrier arrived.)
