You have 67 tons of iron ore252sulphur but you need to know how many pounds that is. To get the answer multiply by 2204.622 which gives you 147709.7 pounds.

How many pounds of steel are there in 75 tons? Just multiply by 2204.622 to get the answer of 165346.7 pounds.

To convert 19 tons into pounds multiply by 2204.622 giving 41887.82 pounds.

In 21 tons of lead there are 46297.06 pounds, to achieve this take 21 and just multiply by 2204.622.