Kapangidwe kake kamakhala ndi makulidwe osiyanasiyana, ndipo muyezo ndi: 21 * 41/41 * 41, 41 * 62, 41 * 82, etc. Makina omwewo amatha kupanga makulidwe osiyanasiyana, amatha kutengera kapangidwe kake kosinthika kapena kaseti kapena kusintha ma roller. pa shim.
Mbiri zamapangidwe zimagwiritsidwa ntchito kwambiri, osati zogwiritsidwa ntchito kwambiri pothandizira dzuwa, komanso kuthandizira anti-seismic, ndi mphamvu zake zazikulu ndi kuyika kwake kosavuta, zakhala zikulimbikitsidwa kwambiri ndikugwiritsidwa ntchito ndi makampani omangamanga.