I am interested to mine And i understand that there is special machines for this but as I understand that every machine normally can produce 1 spesific coin
The special machines can mine one mining algorithm not just one coin, and several coins use the same one as Bitcoin (SHA-256). However, there are also more modern mining algorithms including Scrypt which is somewhat harder to be mined with ASICs. Fewer new coins use SHA-256 now than before.
1.Does all coin mined through GPU? ( I know bitcoin is not )
No. A large majority can though.
2.Where I can find which coin how does He mined?
Not sure what you mean by this. Can you clarify?
3.And is there an special company that cam produces special chip ( As ASIC for bitcoin? )
BITMAIN are the biggest ASIC manufacturers. Avalon is another one. A very popular miner right now is the Antminer S9 by BITMAIN.