The present disclosure relates to converting lines for manufacturing absorbent articles. The state management unit manages a fixed life cycle state, and a variable life cycle state that can be added, changed, or deleted, and the access control unit implements control on the fixed life cycle state before the variable life cycle state. Recombinant cytochrome P450 polypeptides are also provided for use in the methods. A multi-layer interconnection circuit is fabricated on the glass panel using a release layer. The clamps can have spring clips on them to ensure a tight hold on the truss.