After all, the bank is a national machine, so the handling fee and spread service fee are not generally high. People with a little experience are reluctant to let banks take 30-40% of profits for nothing and do foreign gold and silver transactions. Especially Britain.

Ever heard of FSA? It is a British non-profit organization similar to the China Banking Regulatory Commission. Platforms all over the world want to be proud of FSA supervision. That's right. If you are a novice, you can simulate it first. Look at the simulation of foreign exchange speculation, and you will understand it slowly. The gold code is XAUUSD, the silver code is XAGUSD, and the standard lot size of silver is 5000 ounces. Internationally, precious metals are measured in ounces. Get familiar with it.