1.   American car factories used to bury their paint sludges in the ground.

2.   The factory used to make leather for the neighbouring MG works.

3.   In the old days factories used to have huge coal heaps outside in their yards.

4.   Besides low capacity utilization, he said many factories now use several shifts to keep their existing machines running longer.

5.   A Customs officer based at the U.S. Embassy in Beijing determined after an on-site investigation that the factory used forced child labor on its assembly line.

6.   But Chinese factories also use it to make medicine and even a hard candy with a salty taste that is popular in West Africa, Wang said.

7.   But here, as in many places where factories used to be, history can be sentimental.

8.   But services that used to be free still are too expensive or non-existent, like the day care centers and vacations that big state factories used to offer.

9.   Companies like Ford and General Motors have long admitted that their German factories used forced labor.

10.   Here in Gramsh, the rifle factory used to be the main employer.