The plant has several machines that combine and process various raw ingredients in measured amounts to produce particular kinds of plastics. They are numbered W1, W2, W3, and so on.
For the past several weeks, the W5 machine has been making plastic that is overly porous and of an uneven thickness. The plant’s chemical engineer says this is due to excessive temperature. “If it gets too hot, it gets too thin” he repeats every time he gives his analysis.