Yenday ali ndi zinthu zingapo, kuphatikizapo zida ndi zolimbitsa thupi, zopangidwa zambiri zoyera, zolimbitsa thupi, zopanga zigawenga, zigawo zisanachitike.
Chida cha Roalok Puntument Epirve Prient PV1. Kupanikizika kwa max kumachokera ku 3,000 psig (206 bar).
