New dupe method?

So I've recently joined a couple of servers and seen that there is probably another duplication method, seeing that I've went inside basing with 1000+ low quality metal and much more, I was wondering if there is maybe another dupe method that few know. If you know it could you share it or something? I would really like to know. Thanks
-terksss

im very interested in this ive been trying my own methods... no success yet but when i do, this forum will be the first to know for free!

i've had 80 low quality metal by myself from airdrops and mining