Chotsekereza matayala otchinga pamsewu (manual) ali ndi mikhalidwe yambiri monga pre-assembling, recycling, free exposure and contraction, chitetezo ndi mphamvu, kuphimba msewu waukulu, kusinthika kwamphamvu, kupepuka, kunyamula, kosavuta kugwiritsa ntchito, etc. Mabungwe, makoleji ndi mayunivesite. ..
Werengani zambiri