Reputation
How many years the company operates in the metallurgical market? What reviews do they leave about her? Who is her clients and partners? All this is very important, especially if you plan long -term cooperation with large volumes of supplies. Direct suppliers from factories are only 10% of the market, and it is they should purchase products from them, the resellers will have to overpay. If the supplier has its own production capacities — this is the best option.