AD * Chikwama cha nyenyezi chimatanthawuza kachikwama kakang'ono ka polypropylene kamene kamadzadza ndi valavu. Amadziwikanso kuti matumba a valve pansi kapena matumba a PP wovala kapena matumba a valve pansi. Amagwira ntchito mofanana ndi thumba la valve la mapepala a khoma; komabe, gawo limodzi lokha la zinthu limagwiritsidwa ntchito, ndipo palibe zomatira zomwe zimafunikira kusindikiza thumba. Matumba a AD * Star amathanso kupangidwa ndi mapepala kapena zigawo za PE ngati pakufunika. Ndikofunikira kudziwa kuti pali ena ochepa omwe amalowa m'malo, matumba a AD * Star amadziwika kuti ndi thumba lapamwamba lapamwamba la pp lopezeka pamsika.

Matumba a AD * Nyenyezi amatha kusindikizidwa pogwiritsa ntchito inki yokhazikika (mwachitsanzo, timagwiritsa ntchito inki yamadzi) ndikusindikiza kalembedwe kapena kuvala ndi zokutira za BOPP (Biaxially-Oriented Polypropylene) kuti zisindikizidwe bwino.

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