Given a text, write a compressed version of it in a single sentence.

The sewing rooms of most apparel factories are similar in overall appearance. Apparel parts, trim pieces, buttons, zippers, and thread arrive at one end of the room and are separated for each operation, or subassembly.
The sewing rooms of most apparel factories are similar. Apparel parts, trim pieces, buttons, zippers, and thread arrive, which are separated for each operation.